Can a Reseller have a better rate than GSA?

I have a GSA Schedule in which a company has asked to be a Reseller and to list my products on the Reseller's GSA Schedule. I just re-negotiated our prices with GSA and therefore told GSA that we are offering them our lowest commercially sold prices. If we add a Reseller, the Reseller is expecting some kind of discount in order to make a profit. If we offer the Reseller a discount of say 10% off our GSA Schedule are we required to also reduce our GSA rate? I realize that our CSP will have to be modified to include a Reseller, and that's not a problem. I just don't want to further reduce our GSA Schedule rate because we're supposed to give GSA our lowest rate.