I am currently using DR Hi Beams and Fat Beams in the medium gauge .45 - .105. I want to try some Lo Riders and I am concerned that the medium gauge tension will be a little too much for my playing. I was thinking of going with a light gauge .40 - .100. I expect the tension to still be more than the round core DR's. I am curious if anyone could comment on the tension of medium gauge round core DR's vs light gauge hex core (lo riders) Thanks!