I received recently two sets of probably the best aftermarket resin tracks currently available. They are produced by OKB Grigorov from Bulgaria and released this year, if I’m correct. I have a Panzer IV Ausf. G from Dragon (1/72) and I wanted a pair of Winterketten under its road-wheels and nothing will do better than this set from OKB Grigorov. I also bough a set of early tracks for Panther, with Zvezda’s Ausf. D on my mind. Details on both these sets are breathtaking; the Panther tracks have hollow guide horns, and, to my knowledge, this was never achieved so far in Braille scale. OKB Grigorov supplies other superb track sets, and I will definitely buy more: Panzer III/IV (also with hollow guide horns), Ostketten, Panther late tracks, T34 etc.
Panther early tracks (the black ones are from Zvezda):
More than highly recommended!