It is getting late, and I do not really like posting as it can always be read in two or more ways. As I said I am not sure re tee's latest jibs, I did have a discussion with God "Bundy" about it and he's view was the same as I stated. The rig tension is not always better tighter, you need to look at how it affects the mast bend, if you just crank it down and you need to ease the main sheet to straighten the mast to put some shape in the main as the wind lightings, if the rig is crank the tension will take over and keep the mast lower 2/3 a given bend, I think you will find that we all play 2 or 3 holes on the side stays, using the fore stay to adjust the rake. What I was trying to say is that when you change something in this case the jib fixing point buy removing the furler to get the jib lower it will never finish with the same tension. By all means ask a sail maker infact ask as many people in the know, just do not always take it as gospel!! SRM yes it would change the sheeting angle if you did not relocate the jib sheet pully on the chain plate and you do not need to lower the jib to achieve a different sheeting angle there is plenty of adjustment in the standard Tiger jib. Simply if the furler was removed and the jib lowered it would have made more than one change and it would be impossible to truly determine that it was from the lowering of the jib in itself.