blisters from vacuum Silistretcher

Hey ya'll, just got a vacum silistretcher, and love it, but i get blisters on the head near the urethra very easily. Any tips to prevent this from happening? I only stretch for like 30 minutes at a time...thanks!!

Try less vacuum.. I typically use the least amount I can get away with and still have a good grip

BFL said:

Try less vacuum.. I typically use the least amount I can get away with and still have a good grip

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Exactly