Nerve is an interesting gun, easy to shoot fast...SHockers are more widely available...shoot as fast...my mate has a Nerve, which he after selling and I do know another man with a shocker, also for sale.
Well...a little...some people have said tht the bolt can come out of teh back, whee it twists in, but not something I have seen..only major design flaw would be that is made by SP, but i wouldnt hold that against it,...it cant help it...