Yup I got weave with my 1st set. Continental replaced them .... but still get a bit squirrely on white lines and banding ! It does vary depending on load ! otherwise a good all road tyre !
Had some on my daughters 650 twin and never had a problem !
TKCs are made by Continental... jes sayin'
I actually rate the TKC 70s as the very best tyre bar none, for the R1200 GS Adventure LC. I used to say the same thing about PR4s until I got three punctures in as many months and concluded they were puncture prone ( I really do believe that). The 70's seem to grip well in wet or dry on shitty surfaces and I have not had a puncture with two sets.
Never had a weave at high or low speed with or without luggage.