I don't have one of the Camillus-made 301s. But I do have a 307 by Camillus. Its pull, for the most part, is relatively stiff as compared to the modern-era 301 (by Buck) I do have. Having said that, my Buck-produced 301 is essentially what I'd consider ideal for pull on the clip and spey blades. It's assertive enough to inspire confidence for closing every time without worry, while not being a nail-breaker. But the sheepfoot's pull is decidedly weak and exacerbated a little bit by some very slight blade rub as it settles between the other two blades upon closing. When I bought that one, I'd already looked at and rejected one sample the counter clerk showed to me, because its sheepfoot was even weaker upon closing and actually didn't close fully on its own without a little helping nudge. That one also had blade rub issues in the same way, in addition to the very light spring action.
My older Camillus 307 is built with carbon steel springs, bearing against 440A stainless blade tangs. If for that reason only, I'd expect the carbon steel springs to wear more over time against the blades' more wear-resistant tangs, which would likely weaken the closing snap eventually. Mine still has relatively strong pull simply because I haven't used it enough to accelerate that anticipated wear against the springs.