I can only give an opinion on CRT since he has been my sole source of transmissions to date (2). And the ONLY reason he had to build two is because I wanted a backup, just in case something happened; as California is too far for a "quick" repair or replacement.

So far the backup has been a waste of money as my original trans that John built 5 years ago for my 493, 625HP Wedge is still performing flawlessly. And I still use the push-buttons.

So based on his great service, and product I would highly recommend CRT. But here again I haven't used A&A.