I find it frustrating that most developers seem to have abandoned their Froyo ROMs (which still need work) to chase gingerbread. I say stay with froyo, it runs well on the Droid 1 and you are able to truly make magic with it. Keeping as you are is only going to increase your distance from the pack and keep Sourcery as the king of all ROMs.
I have switched ROMS and have always came back to this one. I played on UD's GB for um 2hrs and switched back cause I couldn't take the instability. I say if there are improvments to be made in Froyo keep going with it until 1.you are board with it or 2. you have ran out of options to improve upon. Keep on doin what your doin. Keep up the awesome work
GSM Galaxy Note 3 (Black) - Straight Stock
GSM Galaxy Note 2 (Titanium) - Rooted running Jedi X20 Rom
GSM Galaxy Nexus (Black) - Straight Stock
GSM Samsung Galaxy S3 (Red) - Rooted running Deadly Venom v8.0.1 Rom
I say concentrate most of your effort on 2.0 (.1, .2, etc.)
Wait till some of the other guys have ironed out the kinks before starting into 2.3 (Gingerbread). I know CM's current nightlies seem to run reasonably well, but I still think it is too soon to jump onto the bandwagon.
I don't think that there will be any trouble getting Gingerbread to run on our old phones. I think it is just a matter of sitting down and slogging through all of it (and I bet there's a lot).
I say by the time you feel pretty good and finished with the 2.x ROM, it will be time to start on your first Gingerbread ROM.
Set a target for when to start to look at Gingerbread. Spring break maybe (mid-March).
The guys at Cyanogen have already got a reasonably stable build of gingerbread for the D1, it isn't near being stamped stable yet, but it isn't horrible. I installed their nightly build #3 the other day and it seemed to be OK. I could make a call and everything.