I’ve just completed a semi-tailored jacket for a customer, but as it was long distance, I only had one fitting. The shoulder was far too wide, so I narrowed it and lowered the armscye to try and keep the fit the same. However, it’s come out that she can’t lift her arms up. Is there a way to solve this other than putting a gusset in under the arm? It fits perfectly everywhere else. If a gusset is the best way to go, any tips on making it?