Rack, I have been using the dropzone since March ' 03 and have had no problems with the rest itself or with tuning. I to noticed while installing the rest that the launcher arm has some play in it when all the way up. I have only shot 100 grain fp and bh out of it so I can not comment on any changes with a heavier head. One thing I did different when installing the cord is I tied the cord into my cable slide instead of into the down cable. I have always shot a golden premier but choose to go with a radical helical on my ACC' s 360 so I choose the dropzone to help eliminate any fletching contact. The rest may fall apart tomorrow but as of now it has been a pleasure to shoot and it is really quite.