Dave McCormack, owner of Gateway wrote:"The most recent runs of Sabre are less stable, but not JUST because of the lower PLH,, because of the smaller bead,,, which like the PLH, beads and concaves and rim depths are all also extremely important to the stability.
Baby blue Illusions are a perfect example of PLH and again YES, lowering this height is what we try to do when we run E Illusions. It can be done by a WIDE range of variables from temperature of polymer, Temperature of mold, speed of injection, pressure, hold time, how they are stacked on the table and a combination of any more,,,plus a combination of the above mentioned.
Several factors effect flight,,,, PLH is certainly one of them."
I had a conversation with Dave and he said he specifically tries to influence PLH to get desired flight characteristics.
I knew it could be done, I just didn't know anyone was actually doing it.
I asked if he could label the runs so we'd know the relative stability of the run but he said no way, Jose.