Thanks for the options! I'm leaning towards the 4th
I trashed the old string once it broke. There isn't a single babolat that comes anywhere close to the 6.1s I love, without modifying it to the point where it's no longer the same racquet. They're all too light, not headlight enough and... just yuck haha. Of course the same stiffness that I like is probably the reason my elbow also starts hurting after killing a few balls with the babolats I've played with. I'm sticking to my racquets.
First thing I'm going to try is striking my racquet in the upper 50s either straight multi that I have (I have a reel and I do like it a lot), or mix it with some poly that I also like , like RPM blast.
I am really hoping that this is a problem of the botched string job. I'm playing with something at least 10-15lbs Lower than what I normally prefer, that's gotta account for something other than hitting every ball a few inches beyond the baseline!
What I really want to compare is both my 6.1 from 2003 and the latest model I have, both with the same string setup. That would prove either a) racquet technology has evolved enough to make a difference - hopefully a favorable one or b) older racquet does deteriorate over time, wear, weather, etc enough for an amateur like me to notice a difference.
Hoping to do this after next weekend!