Just a suggestion which you might consider ...you can invest in one of those electric straightening-irons [similar to a curling tongs] They`re not too expensive ...just make sure the hair is well-dampened to protect it from the heat and `go easy` i.e. only apply /use it for a few seconds at a time ... I have used a curling tongs before to get hair at the nape to curl back in when it was sticking out ...as long as you`re careful it`ll be ok.... I can understand your frustration but I just guess there`ll always be some thing or other with any system which can cause annoyance at times.... you should be able to sort it out to your satisfaction easily enough though...regards, Paul.
p.s. ..I just re-read Hersute`s post there .. I guess he was referring to the same thing [ I`m half asleep today !! ]