The question was asked about a nuetral position with this system. I have discussed this with Bill F the owner of Garhauer Marine a number of times. He is an engineer and I am not. I'm lost after the second sentence because I'm just a common seaman and a lot of times I don't really care about all the theory behind this stuff - I just want to know how to make it work for me.Here's what happens with the system - when you tack the boat the jib comes over and the fairlead car sets up at some position on the rail. You would assume that that position is the optimum for the point of sail your on and the wind condition but it isn't - at least on my boat and every boat I've been on with this system.How do I know that the position is incorrect? I've checked it by locking the fairlead car in the nuetral position (I'm not sure this is the correct term but anyway) and then bringing the boat up to and close to head to wind and watch the break of the jib. The way the sail breaks tells me whether the position is correct or needs adjustment. Invariably, the car needs to go a bit forward or aft.It is not possable to move the car aft using the jib sheet. The car might move but the correct way is to have a method to move the car aft by actually slidding the car on the track. I used a simple line but Alan has a better method which eliminates the extra line. He uses the end of the line that is used to pull the car forward. Hope I have not confused anyone here. If so just fire away.