With regards the technology we can state that all the American producer of the ancillary have Pet dryer also for PET like Conair Novatec etc etc and also all the Japanese company too like Kawata and Matsui
Honey comb dryer has the characteristic to have a very stable and constant dew point with is very important to treat PET preform, instead traditional twin tower dryer have a very unstable dew point.
Let me know if you need any other clarification