If I'm honest with you mate, they all pick up well. If I had a worst pick up, it would be the Powerbow. Best pick up, toss up between the Hunts County (Green), L&W (no concave) and Bulldog (minimal concave). (Excluding the minimal-moderate concaving one as it is 2.7!) This could be for a number of reasons, but it shows concaving alone does not improve pick up. Here's the reasons for the good pick up on all the bats:
Bulldog - mid-high sweetspot
Hunts County - C-V profile and a lovely feeling handle
L&W - The counterbalancing properties of the C-ten handle
All of these have been crafted/finished by fine podshavers, and James will know what he is doing. Just say, can you try make it as concaved as this bat, but not anymore.

If you want a particular picture, PM me which one you want along with your email, and I'll mail you the picture.