Hi all, Got a Thompson RM100 (ply) Lefty and trying to get my D and G strings a little lower but when I got the bass the adjusters were already at their bottom setting. My strings at the 12th are 8, 7, 7 and 6. The E and A sound good but I think the D and G could improve with lowering I think (Spirocores). How much work is it to rework the bridge so the adjusters have some adjusting in both directions? I've worked and built some guitars and am comfortable working with wood - I just would like to know where to remove some height. Also, my relief measures 3mm in the center - which seems like a lot no? Cheers!