Don't get all bent out of shape legend.  I only meant that people who average below 220 on a house shot don't repeat shots in a way that they an say for sure what caused a certain reaction.  No thumbing is actually more difficult in my opinion to get the same release each time.  Without the thumb as a steering device, axis rotation is difficult to repeat.

Funny how Nick's and Brunswick's show one thing, but then want to talk about something else.  The Brunswick video showed about a 2 board difference between no weight hole and after it was added, mostly how the ball behaved at or beyond the break point.  On one of Nick's videos you could see a decent difference in moving the X hole, but on some of the other shots, you could barely see a difference.  Even Nick might not throw the ball the same enough to tell the difference in the hole.  So many things have to identical to know for sure.  Rev rate, speed, axis rotation, launch angle, break point, etc. must be the same or you won't know what caused the difference.  And if it's not done on a flatter pattern, it means even less.  Haven't you seen the sprayers that throw the ball all over the place and tear up a house shot?

Anyway, I already said I'm happy you got the results you wanted.  I still say that there's no way a change in a weight hole made 10 boards of difference.  Even on a fresh shot, it doesn't always play the same.  One of the houses I play at puts a fresh shot for us and claims to never change anything because they want a big wall for big scores.  Some days I start at around 25, last night I had to start at 40.  Same ball, "same" lane conditions.  That's what I meant about not knowing for sure how much can be attributed to the X hole itself.
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Telling it like it is.