I ended up with a fairly simple, but quite repeatable, techique on the 733 for moderate to strong crosswind ... and near always ended up with a nice touchdown .. and not much pilot anxiety or sweat.
(a) correct the approach drift angle at a height appropriate to the crosswind .. moderate around 100 ft .. strong around 200 ft
(b) in association with (a) feed in (more or less simultaneously) enough
(i) aileron to establish sideslip sufficient to maintain centreline track
(ii) rudder to keep aligned with centreline
(ii) elevator to correct the lift delta associated with the bank .. typically 1-2 degrees pitch. I've seen a lot of pilots (especially coming onto the aircraft) who don't increase pitch and that usually causes the whole thing to go a bit pear-shaped.
(c) fly it to the flare like any average Piper Cherokee. Although the "feeling" during this last part of the approach is a bit strange to the seat of the pants, it allows the pilot adequate time to adjust control inputs to the conditions so that the aircraft enters the flare under fairly tight pilot control.
(d) normal flare and touchdown, feeding in aileron as the speed reduces and rudder to suit tracking along the runway.
This technique appeared to work very well with typical crosswinds (20-odd kts) and, on those occasions where I had strong crosswinds, I don't recall any undue problem with the final approach, flare and touchdown ... Obviously, the description above is the underlying thrust of the thing and, overlaid on this, is a pattern of control perturbations to account for the variable nature of the typical gusting crosswind .. just a matter of doing a bit of practice until you get on top of the basics .. and, if that means requesting the occasional crosswind for practice, so be it.
Other than for light, steady crosswinds, I never liked the "doing it all during the flare" technique .. this is a very dynamic manoeuvre and it doesn't make sense loading up the skill requirements when there is a much easier and consistent way of doing it... maybe I just wasn't skilled enough to do it the hard way ?