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Which Ampeg PRO?

I've owned and gigged with a '74 SVT from 1981 until about 1991. I love an all tube head, but I won't haul 90 pounds around. I've been using an SVT-4Pro for the last 12 years. It's a great compromise between tone and weight. I also just got an Ampeg SVT-7Pro and really like it. No mistaking the Ampeg tone and for 15 pounds it sounds terrific and is priced right. The preamp in the 4Pro is a bit more flexible and it weighs 26 pounds more than the 7Pro, but the 7Pro sounds great and has enough power for most anyone.
 
2 PRO - Like the Classic but with more clarity, growl, and control over the tone. Not a lot of clean headroom - if you want a loud clean tone, the 4 PRO is the better choice.

3 PRO - sounds like the 2 PRO in quieter/cleaner settings, has some tube growl. Somewhat of a pain to dial in the tone you want

4 PRO - Lots of low end, ok clarity, really clean and warm sounding. No tube amp growl. Power sections - I suggest running everything in bridged mono, with a 8ohm or 4 ohm load. Plenty of power this way.

5 PRO - simple clean channel, wicked distortion channel. Decent head overall, but somewhat limited

I don't have experience with the others.
 
When I was amp-shopping, I found thact the 3-pro had a great tone, easy to dial in. The 4-pro I had to play with for a long time to get a good tone out of. I then got a great deal on a new 2-pro and coldn't be happier. But I kind of want to get a smaller, lighter, more transportable 2nd amp.