KingDubby does a solid job at doing that screamy tape delay sound and is said to be amongst the best available ones for Apple users. I don’t have a mac myself but a good friend of mine put his hands in fire for this one, so if it sucks please let me know and i’ll bitchslap him for real ;)
Last not least, Lowcoders.fr are currently looking for feedback on the latest betas of their plugin. If you find a bug or annoyance, head to their website and tell them!
KingDubby is available from the Lowcoders.fr website.