It would be a onetime sale into the higher discount group. All the pricing is already coded and is determined by the setting in the admin customer screen. Each sku has 6 prices that are set using ezpop. So it is code that alters the group price level of customer automatically if "x" sku is sold.

No I am not live with 1.3.9b yet because the site is very busy and I can't risk it. I am actually building a clone with the upgrade for a launch once I am sure all the stuff works. Plus the new one will allow me to eliminate the myriad of mistakes I likely made over the past few years building the current site