Board Thread:Linguistics/@comment-131.150.136.185-20190109213858/@comment-38644634-20190226234348

It depends on the purpose of your language. For example, is it meant to be an auxiliary language or an artlang? For an auxlang, one could argue that these clusters are unnecessarily difficult, but I'm not so harash.

Personally, I find the tsu/su pair easy to pronounce but somewhat difficult to distinguish when listening. As someone who has learned Japanese somewhat well, it hasn't been a big problem for me though. Clearly Japanese people who learn the distinction as children hear tsu/su as differently as we do r/l (which is hard for them to hear).

I have created a language called Zx that use all of the clusters you have mentioned and I think they're fine, but yes they can be difficult for people to distinguish or produce, but then again so are a lot of foreign elements that are found in languages that aren't our own, whether natural or constructed.

Good luck to you.