Darrian Space tends to feature Mass Customization and unusually high TL minimums. As such, as I was working on the second generation of my "Spy Sunglasses", properly and according to the rules this time, and I thought it would be helpful if there were a handy worksheet for developing custom items. Since I was still set as a GM in the backup campaign, I made one. Take a look. One thing it still needs: When you upgrade a Low TL Item to a Higher TL Item, and you want to improve more than one Performance Factor, you need to make more than one Performance Factor roll. It would be nice if there were a way to specify a variable number of Performance Factors, and a corresponding variable number of Performance Roll Modifiers for each one. Unfortunately, that's past the limit of what you can do with regular old Macros; it needs API work which I just don't have a grip on. Regardless, it works great as far as it goes, and you should check it out. I'm sure there will be the occasional thing that we'll need the TL11 version of because we have to buy it on Darrian, and I think now we're set for it.