Where does your supply of working stock come from? I'm interested in both retailers and secondary sources such as manufacturers and shops that may resell end cuts, etc. I've been dealing with a web seller most of the time but, now that I need a supply of some 1" rod in 12" lengths they are refusing to ship USPS flat rate at my request. Flat rate would save $21.00 per order of round stock that weights just under 20 lbs. The crazy thing is that they use USPS already but, they only use the USPS pouches for up to 3 lbs. ????? I explained to them that flat rate boxes are provided by USPS for free and was curious why they would not allow customers to save $20+ shipping on orders under 20 lbs at no expense to themselves.........no reply. I'm now guessing they are set up to profit significantly on shipping and would like to find other sources for metal stock based on principle alone.