I had another go today and tried to install the D-tuna again..for at least an hour... an hour of frustration and futility and it was lucky I didn't throw it off a bridge.
It will NOT work. Either I got a dud unit or something is seriously wrong elsewhere. I've watched every YouTube clip I can and read all the online help... nup.
I got it from a legit shop on eBay for the standard price, so there should be nothing dodgy about it.
I do all the steps but when I push it in it will only go barely back up to Eb, tightening the set tiny screw wont even take it to E, and the I screw it in all the way it goes so far in the tuna hits the guitar body and bottoms out, and even well before it hits the body its at such angle its almost impossible to pull out unless you used pliers. It should go up close to E by just pushing it in and then a small fine tune... nup not on my piece of **** D-tuna.
I get it all tuned to D with it out as per the instructions, lock the nut, push it in, it only just gets to Eb, and have to adjust the setscrew and fine tuner like below and it still wont get up to E, and you can see there is no way to even pull it out again.
D-tuna's are DEAD to me.