Yes..but there's no real proof that caning the ovaries with super high doses of FSH work either. I know that some women seem to respond better to it as others respond better to lower doses.
For myself, my first 3 Cycles were with doses ranging from 225IU-275IU. Cycle 4 with Wazza was 600IU plus HGH which didn't give me any more eggs or better embryos and my last Cycle with him I started off at 300IU (split doses of course) at my suggestion that was increased up to 400IU for the last couple of days before EPU, no HGH.
So for me personally, more wasn't better. I know for women with DOR/advanced age, higher doses in the AACEP protocol seem to be what yields the most eggs statistically speaking but I think it's a very individual thing.
I also think if you've tried lower doses of FSH for a couple of Cycles, then try higher doses to see what happens and vice versa. Same with protocols. If you've always done Flare Cycles, then try a Long Down Reg or try the AACEP etc to see if they improve your outcomes.