I usually start with 0.50 per spin and work my way up if I'm hitting. The free spins bonus is where the real money's at though. If you can land the book symbols, you're in for a treat!
Yo notthediz, I'm all about that Book of Dead life on JackBit. Rich Wilde's been good to me lately. As for high odds, check out Reactoonz. That little alien dude can pay out big time if you're lucky.