I wonder what are you waiting for with those 666 WoF spins

.I don't know your plan at Freebitco.in but if I were you I would spin them all,and use all the RP points I would get to use every 24 hours the Free 1000% BTC bonus and use those Satoshis to increase the stack of FUN tokens.Most probably I am guessing you have a lot of FUN tokens since you are at 666 spins already and that can be the best strategy,right now they are just above 1 cent but imagine if they go like 20 to 50 cent,that is a considerable amount of money you can get if that happens.
Whatever your case enjoy your spins.
I think in one moment I had around 60k, but I sold some, and some I spent in the FUN casino... I have 25k locked and I was getting 5 spins daily, but recently I started getting 6 WoF spins daily, which is a nice thing! I don't have a special strategy, I think BTC is going down and we will see some higher rewards on the wheel, I guess I am waiting for that moment!
I am not spending RP's for boost, I don't have enough free time to take full advantage of it! Occasionally I am playing multi and I place bets on some interesting games, if I score some profit I use it for buying tokens!