I had read about the don't use headphones thing before i bought the axe, but i knew i would be using headphones anyway cause i have to at night.
So i was a bit worried about it, but i had been using headphones with my other preamps from my mixer for a long time, and those sounded just fine, so i kinda disregarded that notion, and that you shouldn't or can't or whatever use headphones to build patches and have them transfer to live.
It's not true at all to me. The patches i have made for playing with my band at home in headphones when i got to practice were near spot on, the only thing i had to change was a cab sim to better match the tonality of the PA for my direct line, and fiddle with the bass or mids a bit thru my 4x12 cab, but not even much fiddling at all.
I had just anticipated that there would be much more bass with my cab and the pa, so i rolled it off a bit in the headphones, an lo and behold when i got to practice i ended up putting the bass back in, and changing the cab sim to better match the 15" speakers of the PA, it sounded a bit boxy, which i blame on the PA speaker/cabs we have, i think the 15's made it sound a bit boxy - otherwise it was golden, i still use that same patch.
I tried doing some from scratch at practice and honestly, besides having the distraction of other people there, it was still harder to dial it in at a loud volume ect, i prefer to just do it at home.
I guess if you know what your speakers are gonna give you at your live room you can keep that in mind and get very close to a useable live patch with headphones.
Plugging into the axe with heaphones i never tried, wouldn't expect much from that, get a mixer or interface to plug them into.
I'm using an alesis mulitix 8 usb 2.0 direct to pc, and a pair of ATH-M40fs headphones. Sound is great.
Anyway, works for me - no problemo.