RE: Sig SE question
Well I must be a TOC level pilot because I could sure tell the trim changes from morning to afternoon. Here in SoCal 20 degrees from morning to mid-afternoon is common and I'd be retrimming on almost every flight.
I'd get the Sullivan carbon pushrods, not metal ones. The Sullivans will fit the stock sleeves and not change with temperature. While your at it get taller mains from TNT and swing a big prop with low pitch, it's what this design calls for to fly as advertised.
Having built two from kits and flown them over a hundred times I know this plane pretty well.