I picked up a 69 Super K on Clist.Nice 64'' phenolic riser.It's got some glue on the handle like where an arrow holder was.Tried GOO- GONE,OOPS,Denatured Alcohol,did'nt touch it .I even froze it,that took some off.My question is if I sand it to remove it howdo I go about the refinish?Is the riser black all the way through or woll I have to recolor it? What do I use for a finish?