MSC is good stuff, but if you use the UV cut it yellows and ruins the face-up. I honestly would say with the
ZM finishing powder spray if you're simply protecting a company face-up. However if you're doing your own and want a good in between layers MSC is good for those as long as you finish it with the ZM. The only reason I say ZM is because it doesn't yellow (or so I've heard it's newer so we can't know for sure). Plus it's cheaper and looks just as good.
Anyways I hope I was some help. Instead of being even more confusing. D: