I just read a thread where someone said 9 is not enough. Surely that can't be true. Also, won't home lock be achieved on its own if you wait long enough? Can/how do you manually do it? I'm assuming on the display it will tell you if you have home lock. Planning on buying my P4 this week and I've been away from flying for over a year with my PV2+ so I'm a bit out of the loop on things. Thanks.