Where can I find more information? Is there a mailing list for Ace owners?
The single best resource available for ThunderAce owners (aside from this site, of course…) is the ThunderAce Mailing List, maintained by Steve Loughran. This is an actively list that doesn’t have the bull that you find on, say, the R1 lists. There are many knowledgeable enthusiasts who are more than willing to share their thoughts, opinions and experience. The list also has a searchable archive where you can find answers to most questions.