What happens to the stand alone software that is part of the package when you get the X365 version? Obviously when your subscription expires Video Pro X 365 will no longer function but will the Mercalli V6 SAL and New Blue Titler Pro 7 still work as they are separate programs or are they also time limited?
My understanding is that the Mercalli V6 SAL comes with a "lifetime" (i.e., permanent) licence. It is, after all, a "separate" program to VPX - there is no plugin to enable its direct use in VPX or MS.
I don't have Titler Pro so can only assume it is the same, i.e., a perpetual licence. I have other NB products, some of which I have owned for several years (so came with older versions of MEP/MS or VPX) and they still function normally.