There is a game of PLO where the button antes, the structure is 5, 10, (button) 25.
For something like stud the antes are smaller, and everyone does it, for flop games it seems more popular to have a single larger ante.
I would prefer a rock or mandatory straddle.
Having it on the BB doesn't seem better for the game, you'd think you'd want at least 3 ppl with money in the po
would prefer a 3rd Blind I think -