ORIGINAL: Free Bird
I just talked to Spring Air and they recommend the 100 series. It's not obvious on their website, but the 100 series are firewall mounted and the 200 series are rail mounted.
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I switched my Rom gear to belly mount (rail mounted) to gain additional tank room and ease of service. I'm curious as to why Spring-Air would recommend the cumbersome and space consuming firewall mounted gear? Yes, they are stronger, but sometimes it is better to break an easily accessible wooden mount that is screwed into place (not epoxied) than to put up with the hassles of a firewall mounted nose gear.
They make the gear, but do they fly the planes?
Ed Cregger