Mate, get the caddy pads, they even leave Gecko's for dead, you will NEVER LOOK BACK!
Order from Wesspurs and they are cheaper than velcro's including freight to your door.
This page.
Spur Pads for Tree Climbing Spurs
Look for pic below, order them plus a pair of straps.
Climber Straps and Accessories for Tree Climbing Spurs 
