Hi folks, has anyone ever used both a Chamonix Saber and a Polaroid converted 4x5, e.g. Alpenhause, Razzle etc.?

I have a Saber with 120mm APO Symmar that I like a lot. I have now purchased a Xenotar 135 and I am wondering which body to get. Specifically Alpenhause can get close focusing which is a plus. The Saber is very light and convenient to use. The Sbaer VF is OK and the RF is usable, although obviously not Leica like. If you have used both, how you compare them in terms of RF patch brightness and other handling issues?