Hi Doobmaster,
Welcome to the forums! It seems that I am not having to give you any advice anymore, but would recommend to take a look at this one: https://pheromonetalk.com/t/welcome-to-the-official-mens-mx-forum-read-here-first/61527
About the MX446, I just did a quick search. Its an old mix, not currently in production anymore. Its effects are similar to Instant Shine. Currently there are a lot of new mixes in production, so I would say: Check them out and test away!
MX446 Test thread: The OFFICIAL MX446 Discussion Thread