DD lite 12.0 rail and TD panels

I have a DD Lite 12.0 rail. I’ll be putting a gear sector sling plate on the side rail and nearest the barrel nut. Assuming I have three 6" tango down panels, shouldn’t the 3&3/4" panels bridge the remaining gap? Or will I need the next shortest panel?

I don’t think a 6" + 3&3/4" will cover one whole side of my other rails but I could be wrong. I may have to cut 6" panels there.

If you are concerned with covering the entire rail with the solid covers, get the 6" and trim it. Some just use one 6" panel and a ladder for the remaining space. All depends on how you want to run it or “how it looks”