Double and I will take my lumps what ever they may be. If partner passes at least I have what looks like 3 tricks. I know my action is risky but I hate getting robbed.
Pass like a shot. Because last weak a partner doubled 4♠ and I bid 4NT as a no-values takeout with both 55+ minors, at MP, and we went screaming off for a bottom while 4♠ was off one for an average. (He had a flatter hand though.)
I dislike a 4♠ X as "optional", and think it should be one thing or the other to avoid problems like that. My preference is penalty.