It's possible to get a 375, but you'll have a smaller window, since the coinblock is about twice as vertically large as the elevator - so even though you will probably get the same x manipulation, with the coinblock you'll take up more frames to get to the top of the coinblock until you can start moving right again, and with the elevator you'll consume less frames - still, if it's easier for you, then go for it.
The elevator is hard to LEARN, but once you get it into muscle memory, it's a pretty consistent trick.
But that way is definitely better than other routes - like the 373 route
or the 374 route
but the elevator bump is still preferable, in terms of raw speed and # of frames that you can "lose" to still get the FR
I imagine since the second block takes quite some time, that this loses the framerule. I've and several 375 wrong warps lose the framerule, so no doubt that this can lose 0.35 seconds.
"Honestly surprised no one has thought of this before."
Plenty of people have thought of it. I never made use of it, because you need to jump the exact moment you are back to speed after the 2nd bump and it's imho harder than the elevator bump.
Effective immediately, any submissions using the SNES9x emulator will not be verified. The SMB1 mod team has concerns about its integrity due to its ability to overclock and remove lag frames, which may not be easily detectable. Additionally, we request that all BizHawk submissions avoid using the S