I can confirm this. Just loaded up the low3 profile and it's fine. Low3-m sounds much more "metallic" and fizzy. I only listened to merged profiles when going through these as that's how I'll be using them and just assumed this was more more modern metal style tone.
I tried to re merge this profile with the studio cab and it ended up with the same result. Much different from the studio profile.
I wasn't referring to just the merged profiles. I meant all the Top Jimi profiles. They are sound to "metallic" and "fizzy" when I try any of them live. I was hoping the Expression profile was going to be different but it was the same when I tried it at soundcheck. Like I said, on the recordings that Top Jimi does, they sound awesome.