Thanks for the thought Tim. I went down this weekend with your angle in mind, thinking I had missed something, but to no avail. Eventually, I DID get it going though. As a last ditch effort, before I started dismantling everything, I thumped the solenoid with a rubber hammer, powered up, pushed the button, and vroooom! Go figure. Looks like I'll be needing a solenoid.

Hopefully, the mast will go up THIS weekend...