Level 10 bolts require a higher operating pressure to work.
The original regulator piston was set to vent at a pressure that would fire too hot for a level 7 bolt. Since the level 10 bolt requires a higher pressure, the venting pressure of the original regulator piston is too low. You can either adjust the venting pressure if you have a vise and some wood, or you can buy a new regulator piston assembly from AGD or Tunamart.
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