This past several months I've been riding the single exclusively and doing more climbing. Most of the climbing is in the saddle with standing only on steep (13+% or so) pitches. My cadence will almost never drop below 60 on climbs and only then when I'm in my lowest gear (30-30) on steep pitches and depending on a combination of fatigue and the length of the ride.

Generally, I feel good after a ride, even one that might have 70 ft./mile of climbing, but I've notice that my glutes and hamstrings have been getting tight; twice I've crouched to pet the dog (I should get a bigger dog) and with a leg stretch out behind me started to get a hamstring cramp. This tightness wasn't the case in 5 years of riding the tandem; I'd cramp on long, hard rides, but that would be due to extreme muscle overuse when climbing.

Any thoughts on what's bringing on this tightness? I don't think my position has changed, but the setback required on my Adamo saddle does give the impressing of sitting further forward; I don't believe this to be the case, however.

The riding, itself, is fine. I'm getting stronger and recently recorded a PR on a 2 mile, 9% climb (VAM 823, 5.7 mph); while that's no great shakes I'm 68, 195 lbs so I'm not complaining.