http://loknob.com/
 
What this is is a knob-locking device so you can lock settings an amplifiers and stompboxes. Once installed, you have to lift on the knob to turn it, kind of like a childproof pill container but easier. 
 
I will be checking this out in person at the NAMM show, but I thought I'd run it by you guys in advance and see what you think. My own first impression is that it might be very useful for stompbox users, keeping you from accidentally kicking a knob during performance. It might also make the knobs more accessible on a dark stage.
 
Whether it becomes widely-used will depend on how well it works - it's held in place by adhesive, so that's the most obvious potential weakness. They go for $14, but bear in mind that a plain old replacement knob can cost nearly that much, especially the aluminum ones.

I like this concept.
I can see using these on a few pieces of gear.
 
Seems like the adhesive is the second level of securing it although you have to adhere it first, the allen screw seems to be the main stability point, but I do see your point about the possible weak point even with the allen screw.

I'll grant that there can be an awful lot of settings that need controlling. I can't see buying this for me. I like a certain degree of random fluctuation as I twiddle and listen and twiddle and listen.

I suppose if I was a pro on the road I'd have to get more efficient, but I'm not.

I'm mainly interested in getting the daw to do the trick for me.

I would like to be able to have sonar insert tempo changes when I tap a pedal. That would be useful.

Without that, tap tempo sync is limited to guitar amp sims like TH3 which is useful but not complete. It wouldn't alter vocal delay tempo for example.

I'd love to see sonar become a key tool in my live performance arsenal, but it still has limitations. TH3 is getting there. Sure is fun in the studio.

I keep getting system crashes using TH3 in Sonar. I was pleased to see future support for TH3 because I'm hoping that means these bugs will get sorted out.

System crashes keep me from considering Sonar for live performance.

Hmmm, stompbox would be a "possible" but wouldn't apply to me. I have never liked the concept of signal loss from daisy-chaining stompboxes and went with all-in-one units years ago. That particular application would make sense for some users, and the few boxes I still have would move if tapped incorrectly.
 
When he mentioned "your guitar, or your amp" I wasn't really impressed there since I have never had a knob randomly adjust, there are not that many, and if I want to adjust them I do not need to mess around to use it. The "amp bumped and settings lost" I do not get either (I actually cannot fathom this as there are not that many knobs on either to begin with). The "OMG, you bumped my bass knob!! I have no friggin' clue where it was now!!"... bar fight ensues... people hurt... you know the drill
 
I also think I missed how this would apply to push/pull pots, as I have three of them so there is no way to lock them without disabling the push part.

the best sounds happen,
when you bump the knob by accident.

Gaffer tape.
A long strip of it straight across ALL the knobs (especially on amps) to prevent the "musicians" from fiddling with them after I've finished the sound check.... 

Don't the knobs get sticky? Especially on a hot day?
 
 

 
I don't like the bit about removing the washers.  You then have to retighten the nut without being able to hold onto the pot from behind, and if it turns you could screw things up inside.
 
 

There are several types of shaft.
 
1) Solid, like on Fender USA,
 
2) Split, like in the video which seems to show one with a split on the side,
 
3) and Splined. Two types: 18 (Japan, Europe) and 24 (Only seen24 splines on Gibson).
 
Then there's the metric and the imperial/inch diameters. In my experience only solid shaft potentiomenters come in imperial/inch, typically Fender USA.
 
My worry would be, with all these variables, what happens if the knob turns slightly eccentrically? Will it stay stuck to the pedal?
 
Also, they stand quite high.
 
I liked the Ibanez Tone-Lok pedals. Pity they didn't conform to the Boss footprint.
 

Oh, and the nut: Most pedals have small pots and small nuts so that the knob can hide the nut.
But some retro-vintage pedals have old fashioned large pots with nuts that are bigger and stand higher.
 
All stuff that needs clarification before laying down one's cash.