kite tugging

Sailing without a rudder is quite easy once you've got the hang of it, and yeah i agree, why do u need one? i suppose they r quite useful, but havent tried sailing rudderless with a spinni. been told the spinni acts just a giant jib, so sheet in to bear away, etc.

If you want to learn how to sail downwind properly, and you've got lots of space, try sailing without a rudder. If you fix the rudder with rope so it is permanently in the middle and just steer the boat using the sails and boat balance / trim.
I'll have to admit never trying this in a Cherub! but have done it using both asymmetric and conventional spinnakers with the crew out on the wire. Believe it or not, the asymmetric was a laser stratos in a force 4-5!
The conventional spinnaker (Fireball) was during in a race - halfway down a flat out reach to the finish, I noticed the rudder had gone a bit light but just put it down to cavitation so concentrated on steering the thing using the sails. It was only after the finish when we capsized out of control I realised that the rudder was no longer on its pintles and was just floating on the surface dragging behind!
Once you'e been blasting around without the rudder for a few hours, you'll wonder why people bother using them.........

Cheers, but yeah i know the hole luff curl stuff

I find the biggest cause of lee helm is that you don't have the main sheeted
tight enough. The main should be right in, as your sailing on apparent wind
rather than true wind. Once you get really skillfull you can steer downwind
using solely the main, sheet in to head up, and sheet off to bear away. (I
haven't mastered it yet) This is a very fast technique, and "feels" loads more
"natural" to sheet in when you heel to windward, and sheet out when you
heel to leeward.

You shouldn't be having problems pointing high, I can get onto a beam
reach in Strawberry, and that's with a huouge and seriously deep kite!

Like Rick says - any wind and you follow the kite. Even in lighter breezes when you're trying to make a mark, you can't go too high as if you do, the foils can stall / lose grip, and you just start slipping sideways. Better to bear away ain gusts and to come back onto wind when foils are working - the bear away then come up course will be faster than 'stuffing' all the way.

Also be sure to sheet your main right in - this helps balance the kite and aids flow thro the slot.