After a couple of days tinkering I’ve arrived at what I feel is the optimum setup. The leg length depends on the height of the user, of course, and so is outside the scope of this review.
The SmartCRUTCH website mentions, as an aside, that some positions of the cuff are less stable than others (guys, you really need to give us full information on this – which positions are most, and least, stable), and in use I found the 90-degree cuff position provided little support.
It did remove all pressure from my hands (so I haven’t entirely given up on it), but a loss of stability, especially when used indoors where space is at a premium and where I spend 99.9% of my time.
After a day spent fiddling with various positions I settled on an approximately 60-degree tilt of the cuff and a reduction of its length by a few millimetres.
This provides both maximum support and stability, is much easier to use indoors, and as the forearm still takes quite a bit of my weight, pressure on my hand is much reduced (and moved to a different point), so overall these provide far more support than my conventional crutches.
I’m still finding them cumbersome, to a slight degree, as the weight distribution – both mine and the crutches’ – is very different. As with most things, there’s a learning curve and I have, after all, had them only a couple of days whereas I’ve been using my conventional crutches for the better part of 30 years.
My next target is to use the crutches to facilitate hopping on one leg, in preparation for my surgery (I need to build up my muscles and work on my balance).