This thing was talked about over on bowlingchat and Mo seemed to not think much of it. Saying
"From what I've heard, it only works with zero to low flaring situations. Not the real world in bowling today."
Give by what the quote below where it says that the sensor just collects the bowler's data as the player releases the ball (in the air). I don't see the flare really factoring in, given the stats it's collect, now if it was tracking the ball down the lane that might be different.
here was some other info too.
"The Track Fit Program measure a bowler's particulars; PAP, Rev Rate, Tilt, Speed, Rotation, etc. It also provides info on the back/fwd swing, flat spot & loft.
They have developed a sensor (in testing for the last 7 yrs) which goes into the ball to measure all the data. A hole is drilled (approx 31/32) and the sensor is placed in a finger switch-grip. This hole is in addition to the actual finger holes drilled. The hole location is upper right quadrant of the ball for righties and the upper left quadrant for lefties. The sensor collects the bowler's data as the player releases the ball (in the air). So, it really doesn't matter what kind of ball you drill to record this info since the ball itself does not affect the stats. "