Got a LEV a month ago, noticed a small bit of play and wrote to Superstar who said it was the cradle on backwards probably and wanted pics for the warranty.
Read the forum looking for gripes and found others with 3-4mm play but all was still OK.
So I watched the KS video and re-installed everything just to make sure I'd done everything correctly and went to Cannock today (as I have no spare seatpost at the mo).
Half way around my seat had moved all the way back, even though the bolts were torqued correctly.
Later at the bottom of a descent the seat had pratically come off and was only being kept on by the skin of the bolts. Was a good job a hadn't sat on the seat during the descent as christ only knows what would have happened.
Anyone else experiencing similar problems?