Up until now I've been using jam chucks but I want something faster. I was looking at the Longworth chuck but was also thinking of vacuum chucking. I have a 4 gallon mini compressor that will deliver up to 120 psi. Appreciate guidance on which option is going to be better in the long run. With the vacuum chucking, I wasn't sure if my compressor would cycle too often. Additionally, I have a vacuum pack that I use for pressing veneer glue ups, can a set-up be done using that? Thanks