ok thanks for that, we havent been using them since we got the boat and have noticed it not going great up wind poor pointing etc.
i also read on internet when doing searches, they are used so i can flatten the head sail without flattening the main where as when you put back stay on it flattens both. but have noticed the mast flexing alot in the middle up wind.
just have to learn to tack and move them out the way when bearign away on a run now so they dont get all tangled up everywhere.
cheers for your help