Which seems a little odd. A flat board and a radius on the pickup would have the poles further away from the string at the E and G positions. If the board were more radiused and the pickup was dead flat, that would indeed yield the issues you speak of. In the latter case I would certainly look at either a radiused poled pickup or one with adjustable poles as an alternative. I know Carvin do them (Kiesel use them in the custom basses) and funnily Ibanez have used radiused pickups too! Hmm, maybe Nordstrand do radiused pickup poles too, I'd have to check.