We were trying "inside Axels" (I don't think they had a special name) in the 1960s/70s, but I never saw them done much in competition, if at all. I liked them, although I never tried a double because I couldn't get enough clearance off the ice, but then I preferred the edge jumps and the Axel was always my favourite.In Germany we call that Jump since a log time Euler and in my rollerskating "career! 40 years ago we called the Euler also Thoren. I don*t like this jump no matter what the name is. I also learnd a jump called Oppacher, like an Axel jumped off the forward inner edge (right foot while turning left way round)