I keep mine on the warmer/wetter/humid side for the first 3-4 days. I start getting sprouts at that time, then back down a bit after that. Everyone has a technique that works for them. My 1st 98 cell tray this year has germinated all 50 plus types. So far so good. I think sometimes people might get results with scarification as a last resort, but sometimes I think those seeds are ready to pop anyhow from being exposed to heat and moisture already. It is always worth a try though. Good luck and good growing. pp