Tuning Figured out why I lost fps and accuracy

It was a huma duel port I think this is why I couldn't keep consistent speeds or accuracy and I think the center guide was broke for quite a while before it finally gave out
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Yup, I rammed a slug down my transfer port once too. It was more than difficult to get the barrel out of the gun so I could remove it. The slug sheared as I pulled the barrel. That was back when I tried to use the FX pin probe with an elongated stock transfer port. I had no troubles with the stock probe so put it back in.

I thought that the dual hole port with that little bridge in it would stop that from happening. But I guess not always as not much of a bridge it has.

https://www.airgunnation.com/topic/my-takes-on-the-new-slug-power-kit-for-the-impact/