There is another gem for DanielBMarkhams quote search engine when he gets it finished.

it's interesting how the fact that this guy got lucky seems to imply that he'll do fine again in the future.

I got lucky once, I've been working very hard to see if I can 'get lucky' again, but I'm really not counting on it.

I think the real moral of this story is "If it ain't broke, do not fix it".

Do your experimenting on something that isn't making you a ton of money (yet).