I bought a drogue suposed to be for a 26 foot boat mine is 18. It was pretty good for keeping me side on or stern to the waves and not much else. Bought a Para 4 kit recommended for up to 6m) was $230.
Works perfectly to keep me bow on to the waves except that the supplied rope is too short for 2m + seas. The parachute keeps coming to the surface and collapsing which makes for an erratic drift.