I'm not a LP guy anymore, but I always loved the classics which I believe had the uncovered 498. I never cared for the 490 at all in any of the LP's I had that had them. I know that's not a comparison, its been too long for me to remember specifics. I liked the classic '57 much better than the 490, but that's probably getting too mellow for ya. I just remember not being impressed by the 490.
Just for shits, you might try slapping a cover on a 498. That will sometimes tame the "zing" of the top end on uncovered pickups. You already have the pickup so it wouldn't be much work.