How long till you make a VFG so we can all have Magpul gear front to rear on our rifles?
Lots of possibilities. Look at the TD attachment. It has two sepertate levers than must be pulled two per side to get the thing on. If you designed the cross bolts to wrap around and connect like two J's in a 69 position connecting to make a sqared ring you would not have to use 3 hands to install the VFG. The outsides of this ring would be flat to aid in pressing front and lrear levers down siultaniuosly as they would be left and right single tabs in stead of dual short nubs on each side.
You could make "sleeves" that allow the grip to be set up for no tape switches, left only tape switch, right only tape switch or dual tape switch. The left and right only could be rotated 180 degree so one part works for both functions. You could have different modular sleeves for different types of switches like Surefire light and lasers etc.
You could do a K grip (very short) with simple cap on the bottom for storage and have a longer cap piece that extended the grip and had a false look-a-like cap at the base to extend the grip to regular length to store 2 123s in it and it would look aetsthetically like the shorter grip.
The possibilities are endless!