FYI. Base valve reshim, pistons properly drilled out, and blow off valve converted to a more conventional mid valve. The forks felt much better but still harsh and unpredictable at higher speeds. My gut told me it was a rebound issue the entire time but the suspension guys said no. I took my Race Tech WP's and did a little side by side test of the rebound effect. It was simple actually:
Riding the bike I would go full soft to full hard on rebound with very little affect. Off the bike with spring removed and the the outside of the fork unscrewed from the cap full hard to full soft also netted very little affect. I targeted the rebound and experimented until I was somewhat similar in affect to the WP. Even with the significant rebound stack I still have to run it close to full hard. Still need to add more shims.
I believe I am at the point I need to mod the other stacks to have better balance. I am pushing the boundaries of my knowledge now though.
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