I’ve had my WH what, almost 9 years now, and other than a grease job I did a few years ago, the gear has received no maintenance to speak of. One switch, pinkie, is finally a little glitchy, but that could be easily replaced should it become a major bother.
As far as extensions and other mods, when I moved the stick to between legs with a Monster Tech mount, the design really made sense. It’s pretty much perfect. And while the former Eastern block gear looks sexy, the distribution channels need to be sorted out before I try their offerings. TM has really earned my brand loyalty, never mind how great the MFDs are with the Hornet.
Perhaps my ROI on the W.H. justifies investing in a backup set.