You can only restore to the same type of wallet as your source wallet. That's why I wrote that you must move your funds using two devices: one with the original full wallet and one with the light wallet. Sorry if I wasnt clear enough on this.
I can't do that: My Bitcoin addresses are tied to that full wallet for all future airdrops.I can still fix this

If you try to link the same Bitcoin address to multiple Byteball addresses, both links are ignored. If you did this by mistake, link another Bitcoin address.
I'll just move the coins to another Bitcoin address and hook them up to a new account on my light wallet.