I never checked mine so I cannot say with any certainty. I usually assemble my planes then run through a bunch of trim flights to get what I want then start mixing things out in the radio which when all said and done I may have 20 to 40 very short flights I'll change the main wing incidence, change engine thrust, etc...

I can say this much, both of the GP Cap's I've owned needed upthrust as well as the GP Ultimate. Spinning a 22x8 I needed two degrees right and one degree up above what is already built into the firewall. With a 20x8 on he Fuji I needed one and one so if you take the standard size/thickness washer it gives you approx one degree for each washer width so in this case add one washer to both bottom mounts and the top left (pilots side) mount (right side when facing the front of the plane)