Pam, it is harder to shift around at first because you're not used to it. And you're scared and gripping really tightly. Once you learn to relax and perfect your balance, you can shift your booty around. I have my rollers right beside a sideboard. I usually take a break every 3 to 5 miles by grabbing the sideboard and just stopping. I couldn't do Spinervals on the rollers, but I get a tremendous workout on my rollers. I do some interval training, but I cannot get off without holding on to the sideboard. Maybe I could, but I'm not gonna try! Having had a trainer and the rollers, I prefer the rollers. I get more the feel of riding on the road. Then once I venture back outside, I feel really strong.

Also I found it easier to get used to the rollers being clipped in.