Queen's Gambit: f3?

I thought of a new novelty in the Queen's gambit, this system can be played against the slav and declined variation so here it is....

thoughts on it?

Nice

I always have a scare pushing the f pawn.. especially here because it's delays the Kingside knight from developing normally 

err an they snatch the c4 pawn?

e4-e5 then do Bxc4

It doesn't work because of this:

There is a line like this in the Slav but you have to exchange on d5 and play Nc3 first.

This is dubious but playable. You have to know what to do against Qb6 though. If black just plays a normal move like Nc6 then it's equal.

also for queens gambit declined i think bg5 then f3 is better

There's a reasonably good f3 line in the Queen's Gambit Declined, Orthodox Defense, Exchange variation.

Looks interesting but probably wouldn't work well in practice.