Some of you might have had the same problem as I with the snail cams not wanting to stay put. Having to use a vice grip to stop one side and maybe hitting one with a mallot to adjust.
I ordered a set of axle adjusters off ebay
http://www.ebay.com/itm/CHAIN-ADJUSTERS-NOS-Speedway-Vintage-Mini-Bike-/120789776120
and after playing with both installed decided to just use one on the chain side. Leaving a snail cam on the right side of the bike.
100% easier! No slippage of either side. I had a sleeve I cut down and used the second nut from the second adjuster as a lock nut. (edited)