Just thought I'd throw my 2 cents in here ... I too was back to froyo after a GB "go round". However, I flashed Simply Stunning 5.2 to port my themes and I have stayed with it. Chevy did some tweaking with the memory management settings and it really shows! I haven't had the apps closings or 3G drop after calls like I did with other ROMs. Now I am not a huge texter, so I can't speak of that issue.
But, with that being said, if I were to go back to froyo I am with Chizzele. Sourcery all the way!!! Rock solid stability, GREAT battery life and some kick a$$ features ...
And I believe the reason he told you to flash 2.0 is because there is something up with the 2.2 ROM .zip and it wont flash. But the 2.2 update .zip is okay. So, start with 2.0 (AND gapps) and then upgrade to 2.2.
HAPPY FLASHING
Sent from my Incinerated DROID