Someone on another forum told me about this last week and I thought, "Hey, why not try it?" And it worked!
I used my Remora IWB with the reinforced top with my Chiappa Rhino and a tucked shirt, no problem.
That said, I just had a great afternoon here in FL talking with Alan from Remora, and heard that he has designed a specifically-designed-for-tuckable holster that he's beta-testing right now. Cool . . .
That