Are they any drawbacks from having a narrow bridge? Besides being more prone to cracking, does it have any effect on the release? Just recently I made the switch to no finger tips inserts in my balls and have noticed that my bridge is now much narrower. Check this out:

Here's my previous bridge width:
Absolute Layout

Here's my current bridge width:
Trooper Layout

Notice the big difference? I dont mind the feel of it but would the narrower bridge try to keep my hand more under the ball with less rotation? That's how it seems. I have more trouble getting deeper, not necessarily because of the lessened revrate, but that I can't get the desired rotation as easy. With fingertips and the widened bridge, I have no trouble getting deeper and adding rotation as I move left. Has anyone else had this problem or could shed some light on the topic? Thanks.

P.S. On a side note, instead of making a whole new post, I have a pretty bad problem with my thumb. It seems that it gets real sore right over the middle joint (or the only joint) after as few a games as 4-5. Sometimes it's fine but it looks pretty bad. I have 1/8 reverse pitch in the thumb and I'm not 100% sure, but could that be a problem? I have trouble NOT squeezing the ball during the swing which also hinders a free armswing. Again, has anyone else had this problem? lol. I'm gonna see my proshop dude this Sat, and I'll discuss with him this but before I go, does anyone have any advice? Any suggestions are greatly appreciated.
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Only One More Ball I Promise

As for the knuckling part, I do that from the point it drops in the pushaway to the release. I'm not sure if it's my doing, but I just can't not do it. Be it the pitch, span I dont know. Trying out the new grip this Wed so I will update once I've thrown a few.
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Only One More Ball I Promise