You'll notice I'm not commenting on the Compressor setup and thats because I don't agree with it. Not saying it doesn't work it's just not correct way IMO and just a lottery to when it dies.!.

The better way is to have a dedicated Vaccum pump(or Generator) pull a Vacuum into reservoir tank that is strong enough to hold high vacuum pressure. Fit a Vacuum switch so pump is turned on / off has required. If used with good sealing practises then you'll hold small parts no problem.

The secret really is simply lowering the vacuum loss so often dedicated Jigs or Pods with unbroken Vacuum seal work best or the only way without getting silly on the Vacuum system.!! . . . Mats etc work but only to a point and the cutoff point will depend on part size and size/amount of cut-thru.