SW: Your 'hand' looks perfectly normal to me for a handgun of that age and use. And, 0.095" is a normal hand average. Your 'best' fix is to just use the very clear and well written directions you received from Hondo44 and peen the offending extractor star boss just ever so slightly. That will take care of the problem.

Substituting a wider hand very well could cause timing problems with one or more of the other chambers. .....

BTW: My complements, you look to be an above average ability (and results) machinist. That is a skill I don't take lightly. .....