Just a thought. I know the hilt size is limited on this guy, but in general when thinking about the crystal switching characteristics of the saber from the book, it seems it might work well with Erv's new "Tangible Font Selection" in the CF8. Unfortunately it's not live switching like the book description, as it causes a reboot (powerdown/reboot sequence), but it allows fonts to be changed by "using a selector, dial, coding wheel to select your font without going thru the vocal menu." Seems like this would work well with the twisting hilt/change crystal characteristics of the saber to make the secondary ignition/color a font of it's own. Otherwise I was just going to go with Eastern57's font that has the secondary blade as the FoC.