I've gone ahead and done what many do on here and took my Deployant from my 22mm 857 Rubber Strap and retrofitted it to my 857 Bracelet. I like it enough that I went ahead and bought a 20mm version of the Deployant from an 856 Rubber Strap.
The Deployant is still on route, but I have a few questions in the mean time.
Is the 20mm Deployant the same overall length as the 22mm? Reason I ask is that like everyone else who has done this, the drawback is the lack of micro-adjustments. Currently my 22mm has me in the slightly too tight or slightly too loose scenario. Wondering if this will be any different with the 20mm version. So even a minor length difference would matter here.