I just got my Summit in .22lr with the carbon barrel and Magpul stock. I mounted a Monstrum 2-7x32mm scope as it was the only scope I had on hand at the moment and took it out to the range first chance I got. This is my first toggle-bolt action rifle and it is fun to shoot. Faster than a bolt action, but more engaging than my 10/22. I don't have any match grade ammo (only had the 500rd bulk pack stuff) but it was shooting about 1-1/2" groups at 50 yards. Pretty sure I could have shrunken them down to about 1" if I had a decent bench rest and better ammo.
I've been reading up on action bedding and floating the barrel. I'm of two minds on the subject - I've read some have not had good results from floating a bull barrel and other saying they shoot one ragged hole after bedding and floating. I figure I'm going to leave it stock for now and go out again and try to mess with the barrel support adjustment and see how well I can dial things in. Once I get things as well as I can, then I would consider bedding the action and floating the barrel. In most cases, I'm pretty sure I am the biggest limiting factor in how well the rifle can shoot and bedding and floating would only give me a slight improvement.
At any rate, I like this rifle and plan to put any boxes of ammo downrange with it. I'm also rather pleased with the inexpensive Monstrum scope. For an Amazon scope that was under $80, it held zero perfectly, was easy to adjust, and has both red and green illuminated reticle. Think I'll stick with it for a while longer.