Help!

Quite right. People tend to get so transfixed on the 'ideal' crew weight and ignore the fact that one or two missed shifts, some poorly executed manouvres or failing to get clear air can make far more difference to their final result.

They generally also blame their non - ideal weight for not having sailed well.

In nearly all classes there will be days when you will get whippeed by a real flyweight (or heavyweight) due to purely that factor but typically, over a season, we all have our day.

Not many of us sail well enough that the limiting factor ito our performance is a few kilos here or there.

I remember someone on the forum saying that youi'd get creamed in a Laser at 84kg - what rubbish !. The top guys are only a few kilos less and super fit. For the normal club sailor sailing in a breeze you'd still be hard pressed uphill at 84kg.

Admittedly at that sort of weight you mind not keep up with a racing snake inland in lightish breezes (mind you the greatest difference seem sto be in the marginal conditions when the skinnies are fully hiked and planing off wind whilst the bigger  chaops are not quite powerd up and not quite planing).

Clearly the superstars will notice a few kgs on either themselves or their botas, but most of us wont.

Welcome to a lot of people's problem.  Have you noticed how the fast guys aren't heavy.  Most boats  - especially fast ones are designed for lightwieghts.

Enough of that - what it really boils down to is either burn more calories or eat less. 

Fatty foods have the most calories per helping so swap them for fruit, cereals and carbohydrates.  ie skip the cooked breakfast for wheatabix or similar, skip the MacDonalds at lunchtime for sandwiches and skip the apple pie and custard in the evening for a banana.  My solution may not be scientific but I bet it will reduce your intake of calories in a sustainable way.

I'm almost 90kg too and a couple of inches shorter - so like my sailing - I'm better at talking about it than doing it!