yorolpal
What if you didn't dither at all? I generally don't. The last thing in my master chain is either FGX or ProL.
You're most likely to hear it if at all during fades where a noticeable stepping may become apparent.
Just dither as the last process you ever do to the file when reducing bit depth, Sonar's triangular algo is fine, and call it a day. It really deserves no more attention than that IMO.