Given the HP of an LC200 I highly doubt a 10ply will move the needle. I'm on 6 ply Coopers and zero diff in feel from stock. E rated 285/65R17Since this thread is in play, I'm in a similar position as OP...playing the tire debate and considering KO2s or wildpeaks. 285/70-17 is top choice although @radman is nudging me towards 285/75... he might win out.
Question for mud, the 10ply E rated wildpeaks are 5lbs lighter than then 6ply C rated wildpeaks - doesn't quite track (59 vs 64lbs). The KO2s are 51 lbs for the C rated tire. 13lbs sounds like a hefty margin for unsprung weight (acceleration, etc...)
Will I regret the E rated 10ply from a ride comfort perspective?