Sounds like you need to dial in a bit more preload on the front - "falling in" on a turn is a symptom of not enough pre-load.
I've not touched it yet, it's got paint marks which are not lined up so it has been played with but I cant find a baseline static sag measurement anywhere and am waiting till new year to get a headstock paddock stand (or might get it on the ABBA and fill the top box with heavy stuff till the front lifts).
I was too lazy to measure sag front and back, so I just kept a crescent wrench in my pocket for the next few rides. Probably helped that I've had some experience w/ balancing suspension settings for the racetrack on my CBR, but still, I'd say just go for it - I bet a couple turns in will do the trick for you.
As an alternative to the PR4s, you could consider Bridgestone T30 EVOs (supposedly Sport Touring, like the PRs). I have them on my Triumph and I'm delighted with the feel of them, although I've yet to use them in significant rain.
I had a PR3 (excellent) on the back of my old Mutley and replaced with a PR4 due to availability. Never liked it. So many on power slips in the dry. So on the new one have stayed with the Trail2. Gives more feel.
Just had some pr4s fitted today as the riding season keeps on giving At this rate I'll be out for a Boxing Day blast!
After ~6000km on the PST 2 i´ll start 2016 on a set off Metzeler M7RR. I read some very satisfied reviews from Multi drivers. -Heimo
