but it did this even before I messed with the pitch.
maybe your pitch was already 'not right' from the start? just wondering, cuz you've just added the dd and the gyro, you really don't need that good a gyro anyways, and that does add some weight to it. may i ask you where you are in the learnign curve? did you ever punch full throttle collective before, if you did, i'd say 99% of the time it'll do what it's doing now, sinking.