I always release pressure and loosen the injector a couple of turns before moving it off the break. If there is a large pit, or it is very rough, it will chew the devil out of the seal if you leave the injector screwed down tight, then you have to replace it. Whatever resin that remains in the injector is wasted anyway, since trying to capture for reuse is not a good idea (contamination, don't you know).

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