Diy Bow vise!! Just in case you don't want to spend $80 to $90 on a vise. Here's mine.

Build away its cheap and holds the bow well enough that I can center serve it.
I used 2 short pieces of angle iron. These go on the c clamp.
2 short pieces of angle iron
2 pieces of 3/4" square tube
2 bolts and nuts approx 3/8" x 6" (not sure)
5/8" x 12" steel rod
3" C clamp
Stick on felt pad