So I currently play plo 100 where i noticed the population under defends the BB to a SB open. The pool vpips 52% instead of the GTO 72% (based on PLO100 rake strucutre). I dont really have the time to run another preflop adjusted sim where i force the BB to overfold but I'm just wondering from intuition based on such a big under defend how exploitative could i RFI.

My first thought was to turn all limps into RFI's due to high fold equity. This gave me a 42% SB RFI. But i was thinking how much more can we push it. can we simplify to a button RFI of around 55% or maybe even go up to 70% , or even 100%.