J/111 Rig Tune in J/Boat Anarchy Posted April 26 I use the European North settings (with North 3Di sails) and they seem to be good. My jib is on soft hanks. From what I understand, the US boats have turnbuckles with a different (finer) threat, so you need to put on many more turns to achieve the same effect for your heavy weather setting. The RT-10 reading on the lowers is not very critical as just a small adjustment makes a big difference. E.g. only half a turn of the (European) lowers increase the reading from 22 to 26. So that may explain the difference in the Q and North guide. But ball park the 22 is good for a base setting to my experience.