My original dynamo performed the exact same way. I ended up slowing my ball speed way down, and having a flare hole added. This brought out the reaction some, but nothing extravagant. I ended up selling it!
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Hmm..Lets see what I have in this bag...some virtual gravity, some hot sauce, a liberator, and a saw.. how can I loose....
....HG-300(2006 w/Desert Heat)...299 (03/15/09 w/Agent Orange)...HS-776 (Hot Sauce Pearl & Ebonite Magic)