Vince,

It's the smaller 2 stroke capability at idle. The best it can do reliably in this displacement size is around 1750 rpm. Like I said, downlines are not a big deal in Masters and the OS responds adequately as managed. Downlines are not the killers of any sequence

In contrast, the piped DLE55 I am currently fitting in my new design, Delta, has a reliable idle at 1350. Coupled with the 20x12 3 blader, its brakes are better than any YS I've seen yet. I have to bump throttle up in most cases to clean up the downlines. Very slow.....Can hardly wait to get this combo in the air.....Later in summer.....