Martijn,

Nope, 35 is a fair bit older, mine is 76 and is 5 years old in Aug, I would guess 35 is more like 7-8 years old.

The yellow lines are indeed rotation inducers, I've not used them as I find they are usually more trouble than they are worth ! As you can see from my piccies, I do not have them on my boat. I sail on a lake most of the time and so don't get much in the way of waves in light wind - the rotation inducers would be useful to keep the mast rotated in the light stuff in waves !