I've never had to redo one due to 'wear/tear'. redid one because I thought it looked ugly, yes. redid it because it didn't shoot right because of a poor install, yes.
Umbrella uses the original black material, I believe people tested this material to at least 1 million rounds at some point through dsg builds and they were fine.
The one umbrella install I have looks fine on the outside, it did not come down straight when in the hopup unit, but according to the owner, shot straight.
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I futz with V2s, V3s and V6s. I could be wrong... but probably, most likely not, as far as I know.
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