Skyking,
I also like the Perry Carbs and had two of them. BUT. If you think the Supertiger carb is touchy read the Perry manual and they tell you in big bold letters their carb is very touchy. (On the low end) They say to use a smal slot tip screw driver to turn the brass wheel and that sometimes you need to turn past your point on the slash marks and come back to it. Here is another thought recently I read where the cats eye on the spray bar can be turned with the two slot tip screws the hold the barrell into the carb body. Buy turning the spray bar it can affect the idle and transition. I've never done this but some say it works.

It sounded good at the time. !!

JDS