Does anyone else have problems "tumbling" the middle seats on the Entourage? I can yank the strap all day long and they will not release. The only way I can tumble them is to start with the back upright and then pull the strap. The momentum of the back flying forward seems to allow the back latch to disengage. Nothing else works for me. What is the secret? Also, has anyone EVER used the plastic handle to tumble the seats? As far as I can tell, it will break off before those seats ever release. Please help with whatever hints you might have! Thanks!