Textiles for me every time
Jackets far more practicle and comfy to wear touring, leather I found was only really good for short journeys (and textiles u don't look like ur wearing a baby romper suit
).
Trousers while leather is harder wearing new textiles are just a good for protection. I decided to try this out 3 years ago on Nurburgring at 130 and walked away from incident
I agree with geoffb2005 on one major point though is you need to protect ur legs. Your hands and legs are one of the first things that will hit the ground. Hit the road with out decent protection then anything over 30 forget walking away.
Oh and don't wear 5 year old lids that have been kicked up and down the place as they won't save ya neither. Part of my duties is mortuary cover and you can say what ever u like on here but we see end results
Wear the gear what ever it is you choose