Our frames are from Mann Lake and are Groove Groove with no holes in the side bars. These are specifically designed for plastic insert foundation.
All of our foundation is from Acorn. Acorn has different levels of wax coating. We only stock the best coating so all of our foundation is Heavy Wax from Acorn. Heavy Wax is more than a double coating of wax over their standard wax foundation. Their standard wax is special order only. But as a beekeeper I am convinced for the few extra dollars per box spend on Heavy Wax foundation is worth it.
See "Buying the Right Frames and Foundation" page on this site. Pictured is a comparison of Heavy Wax versus a single wax. Choosy Bees Choose heavy wax foundation from Acorn.