Stroker specific cams?

So, I have filled out online cam recommendation forms from Crower, Bullet, and Jones cams. The forms were interesting if nothing else. I found it interesting that Jones and Crower both asked for head flow numbers, but Bullet did not. Then Jones and Bullet asked for spring pressures, but Crower did not. Comp on the other hand asked for neither. I will be interested in see what they all come up with.