I will soon be receiving my first tenor ukulele, and it will be set up with a high G string set. My question concerns switching strings from high G to low G. If I choose to put a low G set on this instrument, is there any modification needed? I would think that the thicker G string would require a modification to the nut slot, but not sure. Also, if the nut slot was widened for the low G string, would it be possible to switch back to high G without any other tweaks?