Probably could. I think boss man has a spring tension gauge from Danny fowler laying around.. But just from running them with the stylus I usually would run around 12.3 volts to line with a ttech 5 or 7rl, with the slot lock I lined around 11.5 or so and i was able to move faster so just from that info I gathered that either they had less tension than ttech and allowed the machine to run more freely or that they had a little more tension and caused a faster "kick up" thus speeding the machine up a bit. But since the machine felt just as powerful and ran nice and cool without a hiccup I'm going to agree with Richie and say they have less spring tension.