Gary, nothing new to report. I commissioned another 33 in my Delta and it's working the same outstanding way my first one did. Same carb and pipe settings as the first. It has about 6-7 gallons through it or about 100 runs. I used the 20.5x10 PN on this one.
Delta has been in the shop lately for a face lift so no recent flying.
Ron had a lot of issues with his 33's, enough so to move to the much less expensive EME line. The DA 35 also had some issues according to Ron.
if you don't have a plane for your engine yet, consider buying my nib Shinden.
Message me with your asking price.
Thanks, Gary