Yep on both the 70-200mm f4 and 70-200mm f2.8 IS MKI and to be honest, wasn't overly impressed with the f2.8 performance with either TC, my 300mm f4 prime was way better. Don't get me wrong, on its own, its a fantastic lens, but its performance combined with a TC, more impressed with the f4 and 1.4x TC performance.
The 70-200mm f4 IS optically is supposed to be really good and combined with the newer generation IS is a good combo
If you had the money, the 70-200mm f2.8 IS MKII is the bee knees and reports say it works very well with the MKIII TCs, but that mega $$$$
Depends what your budget is and what you want to photograph