The other guitarist in my band also uses a Tele, and we (currently, anyway) use the same gauge strings, .009-.042. But for some reason, the tension on his seems to be considerably less, allowing for easier bends. Our string height is pretty close to the same, and both guitars have 6-saddle bridges. The string trees are different, though - a single barrel type on his and 2 roller types on mine - and mine has a graphite nut. Any ideas as to what might account for the differences in tension???