Inconsistent hop

does it do it if you let the hicap unwind a significant amount?

ordinarily hicaps tend not to put that much pressure on, but it's not impossible.
Could it be to do with fps, alough generally consistant i occasionly get a reading slightly higher. Ive done every air seal checj and mod yet still get occasional bump in fps, these chrono readings are on guarder 0.3g bb

View attachment 79475

 
Bet your using ASG Blasters, full of random voids

 
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