Intresting to get totally lit with a 4.2 again ,summer i did sail a half a dozen times with the 4.2 but a stormie 4.2 session is quite different.
Your mast makes so much difference especially when a 45 knot gust and squall hits.
I was using a 4m mast but would have loved to have a softer 3.7 to sofen the kit macking it spounger for a bit more control

Put a couple of photos up in windsurfing and u tude a bit of the storm if your intrested to see St Georges to Sunset beach cracking with log high waves in a 30 to 45 knot onshore. The SPEED track behind the waves is epic especially when the tide drops...........

try this if