I recommend him highly and have used him for years with my streaks. He specializes in "steroid streaks", and custom makes some of the original real/old school parts that Crossman discontinued/downgraded over the years for cost savings/planned obsolescence. Tim McMurray, 3rd Generation Owner, Mac1 Airguns, out in California-Specializes in Benjamin/Sheridans (among other things-airguns) from back in the day, one of the few who can silver solder that separated streak barrel (and if you are lucky enough to talk to him direct, will likely get a welcome lecture that you should have removed the rear sight and immediately replaced it with the Williams Peep sight since the way the rear sight is attached (w/wedges) on the streaks creates tension on the barrel causing it to separate (Cost savings and planned obsolescence, according to him), remove that rear sight and you likely will never have trouble with barrel separation (unless you use the wrong type scope mount).