Hey John, I’ve used trails for a whole year’s worth of tempo, and things were fine =) I find it a very good option for grass/dirt surfaces. The only disadvantage was bringing dirt into the gym afterwards, and getting some ‘strict’ looks 
Hey John, I’ve used trails for a whole year’s worth of tempo, and things were fine =) I find it a very good option for grass/dirt surfaces. The only disadvantage was bringing dirt into the gym afterwards, and getting some ‘strict’ looks