Planning to change out the Mainsail Halyard next weekend on our Lancer 27 PowerSailer our current one is getting a bit old and I believe the previous owner used a 1/2" line which gets stuck occasionally and overall just feels a hair too big. I have seen various sizing recommendations online from 7/16", 3/8", and even 5/16" diameter lines. From the retailers who sell them & forum posts I have come across. What do you guys recommend?