I won’t reply to everything above (!) but I think I gave it 2-3 weeks before I decided to go ahead with the bridge swap. Apart from the high e thing, it also felt a bit alien to me to have the ‘vintage’ string spacing on one guitar whereas every other guitar I play has the modern one. So switching to the YJM strat it felt like I had to adjust my string tracking whereas once I replaced the bridge it felt a lot more like my other guitars in that respect.
Regarding the resonance/tone - I didn’t know the neck joint was a factor but I can definitely confirm that the YJM strat has a superior tone to many strats I’ve played. I worked in a music store for almost 10 years and we were a Fender distributor here in Ireland so I’ve played my fair share at all price ranges. To quote a friend when he played my YJM for the first time ‘it just sings’.
It really is a great sounding instrument.