Crosman 2300 Tuner

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I recently fitted an aftermarket trigger sear to my custom shop C2300. It already had a power adjuster attached. It has become tricky to get everything in balance. Either it won't cock , or the trigger is too heavy. Who is a recommended person that can get it working well ?
 
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I know all about Google , but the point is that when it comes to mechanics , I screw up more then I fix. I need a airgunsmith. I might send it to Baker Air Guns. Airgunsmith could do it , but probably a long turn around . They painted and tuned my Crosman Mk1 , and it looks new now , but took about 7 months. Picture is before , not after.