Hello, this is a 4 button pattern from 1900, it has a rather pronounced “A” shaped gap at the front. When closed it has ½” too much overlap at the top button and 1/2" too little at the bottom. Is this a “cruckening” at the front neck point of the shoulder to fix? [if so how much?]
Or do the sides need letting out at the seat. Or both, is it is a little tight on the seat?