If you have some confidence with the site owner, you can ask he to bring an electro marker set up in semi, no ramping, and will shoot the same as a mechanical one, but less weight, more ergonomics, and of course more fancy. And for the walk-on days, you can set up the ramping mode according to site's rules.
Being a Marshall you should be able to have a look and probably a chance to try some of the guns out there, so don't be shy and ask the ballers you meet to old and have a couple of shoots with their guns.
You will find that most of they will be pleased to hang on their markers to you.