The D-Tuners are rock solid.
I have them on my 4 strings. My PRS has the D-Tuner with the Double Stop lever on it.
I have it tuned to drop to low D and in the second position to low B ().
__________________ Sadowsky Club #2/ P&W Bassist #110/Valenti Club #44/GB Club #97/Hofner Club #25, 18 of 25- We Are Mothman FS- Yamaha 01V digital board
I have a GB7 on my Spector 4, and a BT7 on my Fender - must haves for modern country on a 4 string. Always solid on the tuning and work just like they should
Also use hipshot bridges and tuners - great company
I have been using them since the late 80's, mainly the gb7 versions, but others as well. They are 100% reliable. They never need adjustment, unless you change brands/gauge of strings. It's a fantastic product.