Hello all, new poster here, bought a Twiddler3 a few weeks ago and have been messing with it for a while.
Via AlexBravo's nice Google+ postings I bought some Instamorph (re)moldable plastic, heat in water and re-mold however you want. I wasn't enamored with the idea of use-once-and-set putty. I've been trying to make a case that's somewhat comfortable for me to hold. I can post pictures in a later post, but I had a question:
How can I possibly hold this thing comfortably?
If I try to strap the Twiddler to my hand I end up crowding my pinkie, which makes it difficult to press the bottom row of buttons. If the strap is tight then it crowds the bone, and the strap certainly must not be around the fingers. This is compounded by the fact that the way I'm trying to hold it given my hand structure means that at least two fingers are misaligned with the rows.
For the purposes of managing now I'm "sighting" down between the last two rows of buttons into the space between my pinky and ring finger. That guarantees that the pinky is perfectly aligned with the bottommost row, and my remaining fingers can curl around the top to meet each button reasonably comfortably.
This also means that the Twiddler is a good 1/2-3/4 inch away from my fingers (for crowding and maneuverability reasons, see strap criticism above).
I used to play trumpet so even if it's my left hand my index/middle/ring fingers are somewhat more dextrous than my pinky. I may modify Backspice at some point to require the pinky to be less dextrous.
My current case attempts to do a few things:
Not crowd the fingers. Keep space around the joint on the palm of the hand, and strap the Twiddler behind those knuckles.
Align the pinky with the bottom row. On my hand it's angled slightly differently compared to the rest of the fingers, so the remaining fingers must contort to reach. Perhaps the angle I'm holding the Twiddler is wrong?
Provide stability. I bought a 12' spool of velcro that I'm cutting to size eventually to provide support at the wrist for the whole unit. I also designed the case (a generous term) to not interfere with any muscles/tendons near the base of the thumb and the webbing between the thumb and index fingers. Any other way starts crowding.
Perhaps, at the end of the day, it's a matter of genetics affecting the hand, at which point I'm somewhat screwed? I can post lots and lots of hand + Twiddler pictures if you want. Looking at it, my pinkie tends to want to curve underneath my ring finger from the base when I curl my fingers.