Sadly, Pe will not be answering your questions as he passed on in his workshop a few days ago.
He has been a huge asset to the modeling community, and his wit and wisdom will be sorely missed.

I am in no way trying to replace him, but my Evolution 58GXII turns a Vess 24b @ 6700/6800rpm on the evolution in-cowl muffler. Pe suggested raising the diaphragm lever to flush with the carb body, and this cured my problem with transition. Good luck, for I fear there is no one who will step up to take Pes' place to solve our silly problems..........