Looking for insight on hydraulic plate usage, I can tweak the top to get it dialed in trim and tilt wise. But can seem to get the hole shot correct.

I have my 2014 Ranger 520 C Mercury 250, no wedge, 8 inch setback on an Atlas Hydraulic Plate, I typically drop the plate to 10 on the gauge and full trim in. I have the boat running pretty good at full speed 66-68 at 5600 using a 25 pitch 4 blade Fury. My question is at blast off is it better to have the plate lower in the water and adjust to top speed, or use a higher setting at take off and adjust down to top speed for best hole shots? The current prop comes out very slow and takes forever for the boat to get on plane. I have tried a 24 which was worse out of the hole, higher RPM and slower top. I have tried 3 blade fury's in 25. I even tried the extra 1/4 inch holes drilled in a 3 blade. The 3 blades blow out bad bad and have to pedal it to get on plane, once on plane they are great going straight but that about it.