Guys.
Wireless, wired, Wii, PC... doesn't make a difference, read my post again: it's a matter of them goddamn buttons.
Model: SFC30
lag: basically none
problems: buttons pressure range (you'll excuse me, dunno how to properly call it in English) and kinda busted Wii mode (Wii Remote's emulation mode). The battery also doesn't seem to hold its charge as good as it did before.
Now if it's just mine and a few others (read mntorankusu's post below) that are screwed up than good, just know you'll be taking your chances. I'm more than happy if your SFC30 is super good
I've loved it at first sight so there's a lot of good in there, potentially.
Hmm I attempted this on PC with Retroarch and had no such issues in Super Mario World. Could just be an issue with the Wii mode usage for this controller.
Wii Mode has nothing to do with how the buttons physically work
You're talking about how the buttons take too long to return to the unpressed position after being pressed, right? I had this issue. It's a physical problem with the button pads (the little rubber things inside), nothing to do with the electronics or firmware, so it was a simple fix. The pad shape and size are the same as the original SNES ones, and I have a bunch replacement ones lying around (I used to repair controllers), so I replaced them and now it seems fine.
I have shit tons of these replacement pads, and I don't really do the controller repair thing anymore, so for anyone who is having this issue I would be happy to get rid of my extra shit by selling them at my cost. It would be about $3 (including postage), I think, but I'll get an exact quote if anyone wants to take me up on the offer. I'd also be willing to replace them for anyone who's too skittish to do it (as long as I don't get too many requests) but it's certainly not a difficult thing to do.
Yes. As I've said it's obviously an engineering/design problem with the buttons/rubber pads themselves and their range from off state to fully pressed. I've haven't opened mine nor tried to fix it (don't even have spare parts at the moment) because the iffy Wii mode made me kinda uninterested in wasting time on it for the time being.
Good that it's an easy fix tho, I'll look into it.
I still think the majority of people sensing lag were actually having this issue instead; I mean I've measured lag properly (CRT Trinitron + camera shutter speed) and basically there isn't any.
Are there differences between wired and wireless?
No.
I think it's just that Wii mode on the controller is awkward. I've not had issues with it in wired mode on my PC nor wireless mode on my tablet.
SNES30 or SFC30? Mine's the latter.
Btw it seems that now the controller, after just a few months, only lasts a couple hours battery-wise.