I just bought an old lemonwood long bow probably made back in the 50's. All things considered it looks to be in pretty good shape - no cracks, the finish looks better than what one might expect.It is a commercially made bow that is backed with black plastic material. It has maybe an inch at most of set. Do I need to take special precautions before stringing it to prevent an explosion? Can I somehow reduce or eliminate the set? Also - there is a very small hole drilled thru the upper tip. What is that about? Thanks, Earl