I could ride my DF bikes on rollers, no problems at all. Even did a century on rollers once...talk about boring! But every time I tried with a bent I would fall of the side of the rollers, had to replace the floor from all the skid marks. After a bit of pratice I could ride a LWB for a short time, but could never get the hang of ridding the SWB on rollers.
"When the spirits are low, when the day appears dark, when work becomes monotonous, when hope hardly seems worth having, just mount a bicycle and go out for a spin down the road, without thought on anything but the ride you are taking." - Arthur Conan Doyle