Actually, the Audyn TC goes up to 4.7uf. I have a pair I'm going to put in my Reference 3A Dulcet. I already have a 3.3uf TC Max in my Ref 3a Master Control and it sounds very good. The sound is very balanced from top to bottom so I'm not going to bypass.
https://hfc-fs.s3-eu-west-1.amazonaws.com/s3fs-public/audyn-true-copper-size-310816.pdf
https://hfc-fs.s3-eu-west-1.amazonaws.com/s3fs-public/audyn-true-copper-size-310816.pdf