Also,
I'm not sure if diemai noted this, but watch the line tie. I made a while back a 9 inch deep diving bait with a large lip, about 2.24" long, and the key for me was where i had the line tie. I had to experiment a lot with it and found that the best place was a little shorter than 1/2 times the overall length of the lip. For instance, for a 2.5 inch lip, i would place my line tie anywhere from 1" to 1.2" from the rear of the lip. Hope this helps a little. You can PM me with quiestions and i might be able to send you a pircture or two.
Thanks, Zach