DW,

Actually, I only put that big round hole in the bottom a few weeks ago just because I couldn't get to the glow plug w/o taking off the cowl, however I have noticed it may have started to overheat on some hot humid days w/ extended hovering, but I really just learned to hover.... so part of my winter maintenance is going to be opening up the front a little more and thoes two side blisters and a bit more on the bottom... my pics made me realize I need to hit it with the heat gun too.

14 x 4 wood Zinger ??? how does that perform? spool up faster? I run a 14 x 4 W APC, might try the 13x4W APC again....

Mac