There is also as Phil had said in the past drilling the slide. I haven't had mine apart yet to try this or even see if mine is a year that was already done to so I don't know how much it helps. But that give a little quicker response. I imagine because of the larger passage it allows the vacume to build faster raising the slide faster.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!