Good idea i must try this.Try putting their favourite treats up ramp, mine were hesitant at first but were soon zooming up and down. My ramp is roughly same angle.
Ive seen hay lofts before this might work!The ramp angle is ok. tempt them with veggies. I have four like that but the upstairs (upramp?) is converted into a hay loft, they love it.
Omg the youngest one didnt mind but the dominant Yuki was surprisingly the most scared... strange. Ill keep trying.You could also try placing them halfway up the ramp, sometimes facing up & sometimes facing down. This will get them used to moving on it x