Whatever style of "cut" you go for, can I strongly suggest that you wear your kilt and sporran to the person who may be doing the waistcoat alteration so that they can see at first hand the problem and take the appropriate measurements to rectify it.[/QUOTE]

I agree with Jock Scot that you must wear your kilt and sporran when meeting the person doing the alteration. I had exactly the same problem with a tweed waistcoat. The alteration was surprisingly small and now it does the job perfectly.

Good luck!

Peter