Likely some revisions have been quietly made to the Streamliner and the Tone Hammer.
I'm fairly certain that GB has said that current Streamliner is exactly the same as the first one that shipped out. They do seem to have some issues here and there (like the LED's burning out) but not nearly as many complaints as the 7 Pro and PF stuff.
I'm sure someone will chime in to say that Ampeg sells many more heads, so it's probably somewhat comparable as far as sample size goes. I'm not sure on that, but I know I'd have an uneasy feeling bringing one to a gig and relying on it.
I want to like the 7 Pro, badly! I've came close to buying one a few times.
