>>622639yeah I have the magnets ready, but also clamps and sticky-tack. my preamps have a ton of headroom and a -20dB pad so I was certainly planning on using the pad! also there's a big 100+yr old iron trestle nearby that you can get under so i was also going to mic-up the bridge, which should be less deafening than the rails themselves.
also using sticky-tack buffers the level a bit so that's an option. two of mine are bare plasti-dipped piezos and the other two are in plastic enclosures with suction cups (like the ones in my pic). i'll probably be bringing the suction cup ones, even though they're too thick to use magnets. they sound a lot better and they also match, the bare ones sound completely different from one another and it makes stereo really difficult.