Tuning and modding » Torx screw size, righthand handlebar switches?

So, having read good reports on this forum and regularly suffering from a sore right shoulder after a couple of 200+ mile days, I splashed-out on some very expensive Wunderlich 'R type' bars for my RS. As per the Wunderlich instructions (& a utube video), I can easily access and undo the left-hand T15 screw behind the handlebar grip. When I tried to access the right-hand side, I could not engage the torx key in the screw head. Whilst getting an MoT at the BMW dealer, I asked them to replace the screw. They said that they did this. With a mirror and torch, I honestly cannot tell whether it is a new screw or not, and I still cannot engage the screw. Can someone please confirm that it is T15, like the left-side.

Also, is it possible to remove the bar from the yoke by undoing the big torx bolt in the end of the handlebar. I thought that if I can rotate the bar, after removing the brake lever, I would have a better chance of undoing the little torx screw...

Frustrated!

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OK, my stupidity x2. Wrong part of forum for 1250. And, after seeing a utube and checking a parts list, I see that the screw is a T8. I’m a bit surprised that such a small screw is used. Fortunately I have a T8 in my computer ‘screwdriver set’.