They do have sporadic sales, sign up for their email list to get notified. Upcoming IPSD, February 20, is usually a good one with most retailers.Just checked it and it does work.
Does P&C have regular sales as good as 15-20%? I’m just about exclusively buying from SP but the prices at P&C are quite good.
Please post these codes included in orders, as they are usually pretty good.
PS P&C is owned by STG, so they have pricing advantage on STG products.