I learned a bunch in SM at Cresson, 15hc toyos were also as fast as stickers this past event for me.
I am going to Hallett in 2 weeks with SCCA, the Hoosiers are only supposed to be good for 4-5hc.

The SM guys were saying toyos are fast up to 15-20 at msrc and Hallett but you have to sticker up at COTA