I would be interested to see what sort of line pressure you are running. Just to see if you are still within the safe limits of things.
Just remember, high line pressure is what cracks the forward drums in these things. It can also cause the a number of other problems, but as long as it's within an acceptable range and can be maintained, I don't see a problem with it.
Where exactly is the chip installed? How was it installed? Is this something that a "do-it-yourselfer" could do early one Saturday morning? How much does one of these little shift bugs go for?