[Bob T.]

[ QUOTE ]
Do I have to raise the flop?


[/ QUOTE ]

You don't have to, but you are probably ahead, and you have the biggest draw, and even if you aren't you probably have enough pot equity to make the raise right.

[ QUOTE ]
I think, I could have won more by not slowplaying the turn?


[/ QUOTE ]

Maybe, maybe not, If you raise the turn, and then get threebet, you could smoothcall and you might have won more after the river action.

You would definately win more by raising the turn if a diamond comes on the river, which would kill your action.