Rollapaluza

Two things stand out from that video. Well two things plus the girl with the megaphone.
All the top performing rollers are now using the drops. This appears to differ from the advice that I was originally given about using the tops to open my lungs.
The other point is that the rollers appear to have their toes pointing at a downwards angle rather than flat.

Don't get too excited Mr Cliveo.. you have 5x200k to worry about!