Nope it's not just the T1's, I find that +18db sounds very different too with my headphones. I posted my impressions a few pages back. Others have had a similar experience too.
The tape is probably common to all units with the class A 627 then. The ones with the stock op amp don't have any tape inside.
She is indeed! Maybe I should buy a copy lol. TBH I find fashion magazines to be a bit overdone. I prefer a more realistic, down to earth look
Yeah that class A mod is known for being quite warm. The LM4562 is good though. It's not a class A mod, just a normal dual op amp like the stock one that you can just pop in. It has crisper, better defined treble than the stock. Not sure how else they're different as I can't A-B them.