$200 NLHE 6-max: Royal Flush draw. How you play this?

Ok so i am sitting down with 300bb i am on the button. Utg +2 has a stack about 250bb raises o 6 i reraise to 18. He flat calls. I am holding Ad Qd flop comes 10d Jd 9s. He checks i bet 15 then he over raises to 100. I decided its time to gamble and i shove allin. He turns over KJ. How would you have played this? This deep would you have folded and took that 20 bb loss?

Worse case scenario when he has a set. You still have 40% equity.
On the flop after he reraised there are 152 BB. He has only 132 BB behind now and you have 267. If you shove you have to put 210 BBs to win 284. I think that is good enough even if he has a set.
Hope that what i wrote here is correct.
There is no way in the world that you could had checked the flop and just call to the river with such a strong draw.
Did you had time to stove?
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2,970 games 0.000 secs 594,000 games/sec
Board: Jd Td 9s
Dead:
equity win tie pots won pots tied
Hand 0: 40.758% 40.30% 00.45% 1197 13.50 { AdQd }
Hand 1: 59.242% 58.79% 00.45% 1746 13.50 { JJ }

Yeah you actually played this fine, getting it in on the flop with such a strong draw is the best play, because as stated above you have a great deal of equity against almost any made hand (even if up against a set, you have straight and flush draws, and even royal flush to beat anything. Of course it also depends on the player but against any type of aggro opponent this is definitely a profitable shove.

It's fine to have shoved in that spot. He's one of those who thinks having top pair = invincible.

A bit of information on villain?
Generally I'm 3betting bigger preflop vs most live fish and I'm potting the flop.

3betting with a draw this strong is fine although if villain isn't doing this with weaker flush or hands he will fold to a 3bet I'm prepared to flat this huge raise. We should still have around $380 behind the pot will be around $240 we're going to get to see the river unless he overbets or something daft.
We can nearly always get it in with straight flush draws and see a profit but I think against alot of players here we will have very little fold equity when he sizes his raise like this so calling will net us more value.

The only thing I am doing different here is increasing my 3bet slightly and consequently my cbet. Other than that I think it's good money to get it in the way you did especially since a lot of tight players will let go of that top pair/gs draw when you shove. What happened anyways, I'm guessing his hand held since you posted?