Mixing load ratings

[mtbdood]

I unluckily just got a nail in the shoulder of my newish rear Michelin Pilot 4s tire and was trying to find a replacement for it. The current specs on the rear is 275/35/19 100Y but that load rating seems to have been discontinued, or at least backordered for months. Tirerack was proposing the same size in a 96Y rating, but mentioned it'll feel different due to its different rating and construction.

Does anyone have experience with mixing load ratings across the same axle, or know if this not that big of a deal?

Thanks in advance!