Just my experience over a period of 3 to 7 years using lifelike targets. My Glendell Buck is on his 7th year. Now at year 5 I had to move him out to the 40-60 yd distance to make him last. My Rhinehart made 3 years. At the time I assume weather caused his composition to change so that it was near impossible to pull arrows. Yes I know about wax or soap on arrows, but nothing really helped. I used both field top and broad heads on both targets. I have replaced the Rhinehart with a Glendell. Just my thoughts, oh the Block has served me very well.