Well that is ok.. Hurting trees with spikes is some what on size age type.. if you where to spike very hard to over spike through the bark, it only would possibly effect a high quality log tree if it was to grow 6'' over all its diameter.. now remember 2''-3'' of a side can be slab or waste when sawed out.. and remember many trees are not log or mill able market trees.. and are just firewood or pulp ... most people dont know... so its up to land owner and hunter to choose ... but far as killing a tree it will not.. trees growth is in circular cambium and you have to cut about 2'' continually all the way around a tree... well on the other hand climbing the same tree over and over is less desirable .. if low grade or firewood type it really is nominal harm if any. So one can use climbers but only where applicable ... thanks for being careful when in doubt, and always.
