Score submission on kongregate? How often?

As far as I can tell kongregate only lets a game submit a score once per play session. I don't know this, it's just a guesstimate from posting a game or two there.

While with the Scirra arcade it seems from other games that scores can be sent multiple times per session.

So if I upload something to kongregate and use a score submit button, I should just have it work once?

Or am I way off? Does anyone know about score submissions to kongregate?

I don't think Kong only lets you submit the score once, I have a few games there, and I usually submit the score at the end of each level. It seems to be working well. It is very similar to the Scirra Arcade.

Really? I wonder what is going on - I guess I could just try out a score submit button that's always available and see how it goes.