Neil, went to your site to see the spring form pan in action. It appears that you are using the pan bottom for your follower in the press? What is the bottom of the pan resting on?
It looks to be on a flat surface, and if so, how does the whey get expelled from the pressing process if there are no holes drilled along the pan edge to allow for this?
Another question regarding the use of the pans concerns the final size. As you know, those pans are generally 3 inches in height, which is a nice finished cheese size. How are you packing your curd into the pan to arrive at something close to this dimension without ending up with something 9 inches in diameter by 1 inch thick due to the pressing process? By tamping the curd into the pan perhaps?
Can you make a general statement in regards to the compression factor? Would it be fair to say that you lose 25% or 50% or 70% from the starting height to the finished press height? I like the spring form pan idea, but I wouldn’t want to end up with something that resembles a waffle rather than a nice thick wheel!
Since my wife works in a bar/restaurant, I come by the white food grade plastic pickle pails very easy. I was thinking of cutting a couple of 5 inch wide section out of the center. I would then cut these plastic rings so that I end up with an adjustable size ring / hoop to be my mould. I think I could just then control the final diameter of the ring to the curd amount by using a nylon tie-down strap around the outside.