I bought a Rubber B for my SMP last year. It was a pain in the ass to put it on the watch. The spring bars rubber connection to the strap is hard and not too easy to manipulate. Which is a good thing. The fit on the watch is perfect with no play or gap. The strap is not FKM and would attract oily substance easy, but it is also easy to wash it off with some soapy water. The $240 price tag was a bit steep. Unfortunately due to dingy (6.25") wrist, the strap still didn't fit well even at the last hole. If your wrist is like mine, it is probably better to look elsewhere. Vanguard straps show a strap for a Ranger with different colors. At $140, it is an easier swallow if the strap doesn't work out.
I currently have 12 watches of different brands. 4 omegas, and a mix of Seiko, grand Seiko, breitling, Laco, and GShocks. When the time comes, the 4 omegas will remain as my core collection.
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