This week I hear mostly MP3s encoded with LAME 3.90.2 (Dibrom's) --alt-preset fast extreme -Z --lowpass 21. Sounds good (even to me) and I don't remind anything annoying... but for sure I'd like to know if someone tested it more thoroughly (the fast option) and if there's any substantial difference between extreme and fast extreme. I know Dibrom's opinion about the -Z switch but I know there are another opinions (maybe not so qualified, but they exist) finding it quite useful... I haven't found any thread on the topic.

The fast option will never be as good as the non-fast option, otherwise I would have just defaulted everything to fast. This is according to most of the test samples that were used for tuning (many of which can be found on this site).

OK then, thanx for the reply.