Here's the first test run of the truggy insert. Seemed to feel very similar to the std one in most ways but didn't have as much roll ( slightly firmer ). Still worked ok on the dirt but I prefer a softer feeling insert to reduce the deflection off the rock ( in some places the track is like a dry rocky creek bed for real bikes ) and bumps in places on the track. The grip level seemed pretty good and the bike was just as predictable as with the std one. What I did notice was when I went wide onto the grass, because of the firmer feel the bike turned really well at speed. I think this would be a great grass or really grippy track tyre setup. I'll have to wait for that rain TJ ha ha. Time will tell if this material lasts longer than the Atomik one.
Here's a pic of what the tyres have to cope with