Tim,
I had a straight grip gun bent up, and yes it is a noticable curve to the lower line of the stock at the grip. But, I think it's still the best alternative, unless you can live with the stick-on cheekpad. If it had enough heft in the grip, the lower line of the stock could be reshaped and the triggerguard tang reinletted to straighten the lower line of the stock. But, for most guns, I'd just have it bent and be done with it.