I don't know if I missed something in the past several years that I've used Interlux VC-17m for my bottom paint job but I had to really stretch to get two cans to complete the job this year. Usually I could easily do it with 11/2 cans, even a little less. Both cans this time around were almost 2" short of being full when opened. I can understand that a little room has to be left in the can for adding the copper flakes, but has it always been so much or are we now being short changed ?.