Trial Fitting the New Centrecase

I have made a new centrecase according to the plans but also paying attention to the size of the hole in the bottom of the boat (wider at the front and longer than standard but these variations are only around 2 mm). While I had the centrecase on the bench I tried the centreboard in it so that there would be any nasty surprises down the track. It fitted OK with small clearances from side to side and enough room to swing up.
While looking at the centreboard and the plans I noticed that it isn't shaped as per the drawing. Here is a photo of the top of the board. Note that there is a step in the leading edge of the board where it changes from the parallel top to the profiled lower section. The plans show a straight taper from the transition line to a point above the hole. This flat face would fit against the inside of the forward end log and hold the board at a slight trailing angle to the water line - this is how it appears on the drawing. Without this taper on the upper part of the leading edge the board will hang down more vertically and I am wondering how much of a problem this will be.

In the  next photo a piece of ply shows approximately how much is missing from my centreboard. As well as the missing stuff on the leading edge the top should be parallel to the pencil line. I'm less concerned about that part because what is there looks as if it is strong enough.

Last photo shows the centrecase in place in the boat. At that time it was only held together by a couple of screws and still has to be scribed to fit the curved bottom.