This is a tough one for me. I'm a big primo fan and I have no prob getting real primo.
I'm on papervar (40mgs) now with primo (500mgs) and alittle test.
I've done primo at 300mgs before and if I had good results and to make a comparison I would say that you would need about 500mgs of primo to equal 40mgs of var. The only problem I have with primo is that it dosed to weak.
100mgs per amp = to many injects. If it was daosed higher I would say 800mgs along with alittle test is all you need.
Overall I can't chose between the two so I pick both.