leadwake@yahoo.com has really nice 50 lbs lead bags, thick materials and nice design and handle. I had a bunch of pop products, but ditched them when I got my new boat for lead wake for a plethora of reasons.
His name is Jarod (Jerrad?) and he sells the bags for $50. (pop products were $40 for 40 lbs 5 years ago when I bought them, not sure price now).
I think he can ship them in flat rate boxes for $11 per bag. I will try to find some pictures if you want.