Rolling Maruta question

[yamfriend]

We all know how the Rolling Maruta and Sandan Rolling Maruta used to come off the tracks sometimes for some competitors. I can see how it came off for the Sandan Rolling Maruta due to the drops, but how did it sometimes come off for the original 3-12 version? They even had the larger circular things on each end to prevent this, so I'm sort of confused how this occurred when the original version didn't even have drops in the track. Even if someone didn't hold on to the log right in the center of it, I don't see how a slight adjustment on how you'd grip the log on the Rolling Maruta would cause it to come off.

[quasikoz]

My guess is if you needed to shift your body weight one direction or the other to maintain grip that shift could send the log off track.

[RiderLeangle]

With your body in the wrong place it shifts the weight effecting how it rolls, if one side is going slower than the other it's going to roll unevenly and so it will get up on the tracks and roll off..
The old version had very small stoppers on the ends of it.. They made them MUCH bigger in 25..

[scnoi1217]

The stoppers were small like that until after SASUKE 13 which was probably the most imfamous of the SRM coming off the tracks. After that, they pretty much made them so huge, you couldn't even see the person on the log.