There's nothing about the 'Bypass' button in Yek's first post. And he says later that it doesn't affect the parameters.
He doesn't mention the 'Bypass button' by name, no, but he does say, "If you want every parameter in the AMP block to return to its default value for the selected amp type, you need to
reset the block, on the hardware or in the editor". Double clicking the 'Bypass' button
IS how you reset the block on the hardware. I believe later when he says bypassing the block doesn't "affect the parameters" that's in response to being asked if bypassing and reengaging the amp block achieves that, which, as he states, it does not. At any rate, "bypassing/engaging" would be clicking the 'FX Bypass' button twice, not double clicking 'Bypass' button while editing the amp block. If you: go into the 'Layout' screen, select the amp block, click 'Edit', then click 'Bypass' twice in a row, that will reset the amp block to all default settings. That is definitionally an affect, you will see it happen if any of the parameters on the page you're on while editing is not at default already.
I think there's a whole lot of unnecessary tumult going on over whether a reset is "required" or not. What resetting offers is an assurance that all settings are returned to default. Some think that provides magic, I think it... provides an assurance that all settings are returned to default.
If you've got "cruft" from old firmwares' values (or old tweakings) that are no longer ideal for updates to the algorithm, then yes, I could see how that might "magically" make an amp sound unbroken on a given firmware, but if you're mostly just tweaking BMT and volume, it might be of diminishing returns. Not something you
have to do to avoid complete protonic reversal or anything, just something you
might want to do if you're concerned about having all the latest default settings for an amp in a patch. At any rate, the suggestion stands, if you wants to reset your amp to default, edit the amp block on the hardware and double click the 'Bypass' button. If you want to do it from Axe-Edit software, select one of the block reset options from the menus, or hit the keyboard shortcut.
An easy way to test out what resetting does or doesn't offer for yourself is to copy X to Y on the amp, reset X, return: BMT, Presence/Depth, Volume/Drive/Level, and any Bright/Cut/Boost switch to match what they were before. Now compare X and Y. If X sounds loads better, the new defaults are better for that amp, if it doesn't, or you can't hear the difference, than maybe it's not worth the effort to reset amps in every patch. Try it out see what you think, ya know, for science.
