Exhibit 27(h)(88)

AMENDMENT TO THE PARTICIPATION AGREEMENT

This Agreement is made by and among Security Life of Denver Insurance Company ("Company"), M Fund, Inc. ("Fund") and M Financial Investment Advisers, Inc. ("Adviser") (collectively, the "Parties").

WHEREAS, the Parties executed a Participation Agreement dated December 1, 2000 (the "Participation Agreement") governing how shares of the Funds’ portfolios are to be made available to certain variable life insurance and/or variable annuity contracts (the "Contracts") offered by the Company through certain separate accounts (the "Separate Accounts");

WHEREAS, the Parties have agreed that it is in their interests to add additional Separate Accounts and funding options to the Participation Agreement;

NOW, THEREFORE, in consideration of their mutual promises, the Parties agree as follows:

1. The Participation Agreement is hereby amended by substituting for the current Schedule 1 an amended Schedule 1 in the form attached hereto which adds certain additional Separate Accounts to the Magnastar Contract.
2. The Participation Agreement is hereby amended by substituting for the current Schedule 2 an amended Schedule 2 in the form attached hereto which adds certain investment options to the list of those funding the Separate Accounts.

M FUND, INC.		SECURITY LIFE OF DENVER INSURANCE COMPANY
By:	/s/ Daniel F. Byrne	By:	/s/ Lawrence D. Taylor
Name:	Daniel F. Byrne	Name:	Lawrence D. Taylor
Title:	President	Title:	Vice President and Illustration Actuary
M FINANCIAL INVESTMENT ADVISERS, INC.
By:	/s/ Daniel F. Byrne
Name:	Daniel F. Byrne
Title:	President

Schedule 1 – Amendment

Effective as of May 1, 2003, the following separate accounts of the Company and Contracts are hereby added to this Schedule 1 and made subject to the Agreement:

Name on Account	Type of Product Supported by Account	Name of Product
Security Life Separate Account SLDM1	Variable Universal Life	Magnastar
Security Life Separate Account SLDM2	Variable Universal Life	Magnastar
Security Life Separate Account SLDM3	Variable Universal Life	Magnastar
Security Life Separate Account SLDM4	Variable Universal Life	Magnastar
Security Life Separate Account L1	Variable Universal Life	FirstLine
Security Life Separate Account L1	Variable Universal Life	FirstLine II
Security Life Separate Account L1	Variable Universal Life	Strategic Advantage
Security Life Separate Account L1	Variable Universal Life	Strategic Advantage II
Security Life Separate Account L1	Variable Universal Life	Asset Portfolio Manager
Security Life Separate Account L1	Variable Universal Life	Variable Survivorship
Security Life Separate Account L1	Variable Universal Life	Estate Designer
Security Life Separate Account L1	Variable Universal Life	Corporate Benefits
Security Life Separate Account L1	Variable Universal Life	Strategic Investor

IN WITNESS WHEREOF, the Fund, the Adviser, and the Company hereby amend this Schedule 1 in accordance with Article XI of the Agreement.

M FUND, INC.		SECURITY LIFE OF DENVER INSURANCE COMPANY
By:	/s/ Daniel F. Byrne	By:	/s/ Lawrence D. Taylor
Name:	Daniel F. Byrne	Name:	Lawrence D. Taylor
Title:	President	Title:	Vice President and Illustration Actuary
M FINANCIAL INVESTMENT ADVISERS, INC.
By:	/s/ Daniel F. Byrne
Name:	Daniel F. Byrne
Title:	President

Schedule 2 – Amendment

Effective as of May 1, 2003, this Schedule 2 is hereby amended to reflect the following changes in Fund Series and other funding vehicles:

Contract Marketing Name:
	Magnastar Variable Universal Life
	FirstLine Variable Universal Life
	FirstLine II Variable Universal Life
	Strategic Advantage Variable Universal Life
	Strategic Advantage II Variable Universal Life
	Asset Portfolio Manager Variable Universal Life
	Variable Survivorship Universal Life
	Estate Designer Variable Universal Life
	Corporate Benefits Variable Universal Life
	Strategic Investor Variable Universal Life
M Fund, Inc. Fund Series:
	Brandes International Equity Fund
	Frontier Capital Appreciation Fund
	Turner Core Growth Fund
	Business Opportunity Value Fund
Other Funding Vehicles:
	AIM Variable Insurance Funds
	The Alger American Fund
	American Funds Insurance Series
	Fidelity Variable Insurance Products Fund
	Harris Multi Strategy Fund
	ING Income Shares
	ING Investors Trust (f/k/a The GCG Trust )
	ING Partners, Inc.
	ING Variable Portfolios, Inc.
	ING Variable Products Trust
	INVESCO Variable Investment Funds, Inc.
	Janus Aspen Series
	Neuberger Berman Advisers Management Trust
	Pioneer Investment Management, Inc.
	Putnam Variable Trust
	Stark Multi-Strategy Arbitrage Fund
	Van Eck Worldwide Insurance Trust

IN WITNESS WHEREOF, the Fund, the Adviser, and the Company hereby amend this Schedule 2 in accordance with Article XI of the Agreement.

M FUND, INC.		SECURITY LIFE OF DENVER INSURANCE COMPANY
By:	/s/ Daniel F. Byrne	By:	/s/ Lawrence D. Taylor
Name:	Daniel F. Byrne	Name:	Lawrence D. Taylor
Title:	President	Title:	Vice President and Illustration Actuary
M FINANCIAL INVESTMENT ADVISERS, INC.
By:	/s/ Daniel F. Byrne
Name:	Daniel F. Byrne
Title:	President