Like Mike said, the LPC is just a chamber to hold air. Unless he is running a crazy fast set up (eframe) or an uber low pressure set up where the extra volume would help in long strings of shots, he should not need anything near that size. The restriction of the front block will hurt more in a fast Eframe set up.
As far as fixing it, just go through the normal Spyder fixes.
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What the [censored] is the purpose of a "sig" here? We are a decently close bunch of E-friends who dont give a flying [censored] about PBN. I dont see a goddamn point of putting my BST or some other wanna-b-AGG [censored] here. If you want to know what I have up on the chopping block, ask me. Anyway.....
Always looking for Sterling, Intimadator & Spyder stuff.