Measurements are a little misleading
Just got this, so can't evaluate the clutch yet. Seems quite solid but it looks totally conventional, so I don't expect it will be any better or worse than any other decent brand. The lever is long enough that you can get a bit of torque on it. But you really don't want to have to rely on the clutch to hold your mic up.
The actual extension though is not 38" it is only about 28". With a common or garden mic clip, it comes to about 31". 38" is in fact the total length of the boom, including the weight.
This means it won't extend from the treble end of my 88 to sit over middle C.
It will extend from the bass end, but if you have a board with a mod wheel etc down there it might be a problem - you might have to finagle it in behind. In my case room there is limited because my top board is only slightly shorter.
From the bass end, I can allow 4" above the fixed weight for a detachable three pound weight, and it then balances my Sennheiser e855 nicely. That is a reasonably typical vocal mic for weight. Having got it to balance, I can experiment with putting it behind my rig, where the clutch is out of reach, since I should not need to adjust it all the time.
You have to reverse the clutch, of course, and the actual clutch cannot be reversed. But the "fixed" weight comes off with a supplied allen key and you can turn the whole clutch assembly round. Reattaching the weight proved simple - there is a hole the allen key screw goes into, but I think I got it in there easily enough. That puts the lower tube locking knob on the back, but that is not a major problem.
I use the weight with my existing, longer boom, but with that I have to have significantly more sticking out to balance, This will be less of a hazard on stage.
So it works, even in the way I am using it, which is one of the more demanding uses of a boom. The construction is comparable to my existing boom that I have been using for years (the rubbers on that have perished but the boom is still sound) so I expect to get years of use out of it.
Because the weight is removable, and the rod extends all the way to the end of it, you could remove that and put a heavier weight on if needed, so it gives you quite a bit of flexibility.