I'm considering to buy a new set of Bartolini pickups for my Curbow 6 sting bass as the old one have installed to the bass for nearly 10 years already. But one question come to my mind is that, the Bartolini PU that installed into my bass is the old version I believe, there are no any srew holes on the surface of the PU, the Screw holes are located on the back of the body. (Shown in Picture.a and Picture.b) But for the new version of Bartolini PU, the screw holes were located on the surface of the PU (Shown in Picture.c), I would like to know is it possible to install those new version PUs to my bass . Any Curbow users face this problem before? or any suggestions? All input are appreciated!