question l have a dv8r new to me with a jetcat 80...plane flys flys good for what it is an the engine it has..the issue I'm having is a half to below 3/4 plane flys straight an level at full power she climbs...now l guess l could add a mix of down elev to solve that..but can l shim the engine...to avoid the problem almost like the ziroli turbinator like to climb at full until a thrust angle change was done..do l do the back or the front of the turbine...