+1
Each bike will have a period of muscle memory / learning / adapting ,
i remember when i bought the GS i got a lot of pain in my wrists due to the different bar position compared to the XL
After a while it went off (re learnt muscle memory)but then i started to get a shoulder pain, in my RH shoulder,
i worked out that was caused by my backpack, hence why i strap it to the luggage when i go on long trips.
I still got a pain in my RH shoulder, but i think that's due now to keeping everything from moving, so it gets into a static position and when you eventually move it ,it's like cramp.
The new bike bars, are lower and forward. I dont mind the position, but would prefer to be more up and back, I haven't done enough miles yet to say whether they new bar position is good or bad.
I understand the need to protect your back, but you may be doing more harm than good.
have you run your dimensions & the bike over on cycle-ergo.com? it may give you some insight into how much you need to move things to match the gs/ktm set ups you had?