i just looked and the new new loggys is a little different then the one i bought a few years ago (2-3) the teeth are located different and the angle of the cable is steeper so they might be better. everyone i know well (no joke) has a loggy with the rubber in front and back and never slip with it but my brother bought one one year when they tried these hard plastic knobs going against the tree and he slips quite a bit. i really have never slipped with my old loggy and none of the other guys i know have either that one reason none of us have switched to anything else there just so light and quick and nothing to get in the way of shooting, but they can be a bit loud if you dont use a couple tricks to quiet them like putting the padded shoulder straps in between the stand and the extra band sticking out to stop any rattles and also keep the seat bungeed down until your at desired height.