Sights ?

[DragoonDrake]

So I have been bad and I have been looking up sights for shooting in palma competition. That got me to thinking, Uh I wonder if you could use those sights for IHMSA?

So my question is does anybody use or know anybody that uses the sights like warner, PNR, or phoenix prec to shoot in unlimited class in IHMSA?

Thanks in advance,
Adam