Howdy. Will changing my 25m lines to 23m line be beneficial for wave kiting or not make enough of a difference to worry? Also I find the 25m a bit long for self landing launching on a higher tide. Any suggestions? Thanks in advance 
Borrow a mate's bar that has shorter lines and try it. It does make a difference and could be beneficial for wave riding especially in high winds. At the end of the day line length is a personal preference and the best thing to do is to experiment
Christian
bit of info here .....
corekites.com/us/about/blog/just-as-important-as-kite-size-pro-rider-matthias-larsen-on-optimal-line-length
