yeah, I don't want anyone to misunderstand... There is far more to it than just ramping. The simulated bargraph blade is one of my favorite features of the LS, for when you're using isaber.
I was just trying to make the point that making every saber a string blade is a very tedious process, especially when you aren't gaining that much brightness (2 dice of a tri cree is very comparable to a slothfurnace style led string blade when the led is mounted at the base of the blade... The tech has gone further than most realize). Like for my mkvi reveal, sure, it makes sense to do an LS blade, because then you can have full brightness and still be able to take the saber apart. The only other way to do that would be to mount the led in the blade itself, on a din connector so you can take it out to unscrew the hilt and show the reveal. But it's just so time consuming to do, that it's one of my least favorite things to do (right up there with watching fiberglass cure and waiting for paint to dry).
As space mentioned, you have to buy the leds from the right place, in a strip package format (meaning that they come off of the production line in a sequence, and are cut from a tape roll strip and shipped to you in the same order that they came off of the production line). That costs more. And, most people want FoC. I have not yet actually dont a correct FoC blade with a standard one, though I know exactly how I have to do it. It's far more complicated than just making 2 ladders of leds and shoving them in the foam tube. It's tough work, and it's also why even if someone paid me an hourly rate, I still won't make a string blade by itself. Don't mind doing it on top of a crystal chamber commission, but it's just not feasible for anyone to sit around making them to sell. No one wants to pay $500 for a blade.