UPDATE
Hi again all,
I've been out for a test ride with the new handlebar angle. For me, it has made an improvement on the riding position, I feel a bit more stretched out so that is good. I did 50 miles then returned home, refitted the covers ( went back on easily, no hassle ) and went out for another 30 miles to ensure that the controls had not been compromised, especially the throttle cables. Pleased to report no problems at all.
Thank you all for your input and help.
I hope this helps others to do the same if they require it
Cheers,
Norman