If it were up to me, I'd be running those Toyo's in a heartbeat....but I couldn't find them, they definitley weren't around when I bought tires with no-one on the planet could get them in the US.
I'd be running them in 37's if they came in a 16" rim!
I would sell my Trxus to throw the Toyo's on with the reviews and what friends have said who have run them.
The weight will add to sluggishness, no doubts about it, more rolling mass...it's just physics...how much thos I couldn't really tell you..
GO TOYO!