My new SC-60 Scissors Jig arrived this past weekend. As with all of the redesigned Tormek jigs, the use of machined zinc make this jig mechanically an improvement over the older jig. Some of the design features make it quicker and easier to set up. For me, this puts it generally in a smaller category, being also recommended for those who have been in regular use by those who are already using the older jig. Those on tight budgets and/or rarely sharpen scissors will get along well with the older model.
I like the fact that it can be used both for scissors and as a platform with the T2.
Ken
I purchased the SC-60 when it was announced, but only recently got to use it. I found it quite good. If you don't have a scissors jig, this one is recommended.
Like you, I believe the older SVX-150 is still quite usable (I will not be getting rid of mine).
I received the new scissors jig as well, but have not had a chance to use it. I've sharpened a lot of scissors on the old one and find it works quite well. I got the new one because I have found other uses for the rest platform from the old version for making custom tool rests and the slick sliding surface can be a boon for some operations. I even purchased a second platform some years ago for making modified rest platforms.
Modified Rest Platforms 128012-22-25.jpg