I've been using an S-Hoop batter on my Black Beauty and Supra (both 6.5x14) for a few years now and really like them. Considering many drummers put die casts on on their Ludwig snares (moreso on BBs than Supras it seems, but still), I wouldn't worry about any adverse effects on the sound, which is somewhere between standard triple flange and die cast.
While Ludwig triple flange hoops are still 2.3 mm, they're not as tall as what I'll call "standard", so they're a little lighter and come off sounding noticeably thinner than a "regular" 2.3 tf. The extra width of the top flange gives the S-Hoop a little extra mass and structurally makes them a little stiffer, which is where the die cast comparison comes from, but without the heavy muting effect.
I haven't put them on my tom batters, but that's mostly because I'm worried about clip-on mic holders in clubs not attaching securely. If I knew they'd work in every case I'd do it though. Perhaps if I bought my own mic clips that I knew worked and took them to gigs with me ...
My only other thought is that I don't see the benefit to using them on tom or snare resos. I bought the resos for my snare but went back to the stock tf because I didn't see the point and if there's one thing I don't like about them (and this is very minor), it's that it makes the simple act of picking up a drum dicey - you don't notice how much you rely on the hoop for carrying until you pick one up with an S-Hoop!
But yeah, S-Hoops FTW!