If this makes it past draft I'll vote no as it stands. I will not support a proposal that's not good for rentals.
It also sounds complicated for the team to implement, there should be a simpler solution to start with. I'd suggest to start with CP requirements that cap your multiplier/sps earnings. It should have nothing to do with what league you are in. However, do we know what problem we are trying to fix? With the 1x multiplier being dropped for having 0 sps staked/rented, I think we need to see the effects of that first.