I have been trying to go through and created my own file with all the straps and harness stuff. Where I can print faster but still get good quality. Still very much a work in progress. But the one thing I have learned is this.
Move the 3 straps with no loops (Lap strap, Storage strap & Long strap to a plate on their own, set that plate to print by object, and vase mode. The straps come out perfect every time.