Well, if you actually look actually look at his numbers, he was pretty consistent throughout his career. which is the problem, as most power hitters don't stay "consistent" into their late 30's. He didn't really drop off power-wise until his 40's His numbers didn't significantly increase late in his career like Sammy, McGwire, Bonds, etc. I think hitting 40 homers late in your career when you have done it previously is a little different than hitting 60+ homers late in your career when you pretty much averaged 40 home runs most of your career. Having your career year power-wise at 37 is a little odd. Having another season at 39 that potentially could have been just as "career-y" if it wasn't shorter by 19 games is also odd. Hank has some weird fluctuations in the final decade of his career. Could just be one of those things. Interesting. I think this bears further research into what else Hank may have been doing.