Varmint model or no? Eventually I want to get a new stock and have it accept detachable magazines. Badger Ord probably. I can find the Varmint model anywhere. Impactguns told me it was a 3 month wait. I can more likely find the regular SPS model easier. The only difference I see is that the barrel is longer and there is a different twist on the Varmint model. Is there anything else?