I just did the valves on my 950 Adventure and sure as shitte, I had one of the cam bolt heads start to strip on me. I did manage to get it out with no problems. I took the cam bolt to the hardware store and they matched it with a new bolt. The only difference was the size of the allen head, the new one was larger and felt more secure when tightening to spec. I have ordered a few replacement bolts online and next time I do the valves I will replace the bolt. I suspect it was the angle of attack that caused the problem in the first place. There is not much room to work on a few of those bolts. Next time I will know better. But I have to agree, the bolts did seem pretty damn soft, all things considered.