No chrystals after 2000 or so shots, and it shoots flat as a pancake at 25 yards and very fast.elm is amazing in compression.here's another example bbe 55#@28 ,it has one small crystal on the upper limb but has shot many thousand arrows.I use small diameter bamboo ,usually 2-1/2 to 3" and the slats are about 3/16 in the middle.thank'sfor the compliment!