Last February I went to a indoor Long driving contest. When I was there I decided enter it. I had 20 minutes to warm up. I made some changes to my swing, added lagging club head take away, float loading and some other things.
For warmup I used one of the drills Comdpa posted, I think it was called "the pyramid drill". I focused on maximizing Acc2 lag and PP#4 pressure in the downswing.
The result was the 3 first tries was around 136-139,5 mph clubhead speed, not very straight. Then I decided to slow down a bit to be able to hit the grid.
The last three tries where around 115 mph and straight and the distance was 290-295 yards.
I believe my normal clubhead speed at that time was 105 mph.
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