I had the same problem as you have now, Pete, but the other way round: I had too much wobble, and I wanted to make it tighter.
I make crankbaits which rarely are longer than 3", so there is a difference in action, but the principles are the same.
Take these ideeas into conideration:
1. The lighter the wood is, the more action you can give to a crankbait
2. Being a very long crankbait, try to place the lead more towards the nose
3. It is better to bring the lipslot closer to the tow eye, than to lower the placement of the tow eye towards the lip, because in case that the things inside the lure are not perfectly symetrical, the crankbait might roll over
4. Try a longer lip, not a wider one, and take into consideration the fact that the longer the lip is, the harder it is to tune a crankbait.
5. I am amazed at the thickness of the lip. 0.22" is 5.588 mm. For my lures, I use CD material, which is 1.2 mm thick. Of course you should use a thicker material than I do, but I think not that thick.