I have a Bionx. Sometimes I ride on level 4 and am out there just to get some fresh air for an hour or less. Sometimes I am using level 1 those are rides of 2 hours or more. Usually I ride level 1 away from home and use level 3 to get home after I get tired. I don't consider any of it cheating. If anybody does believe me to be a cheater that is their right to be wrong and I don't really care.