Did you not get relief in February 2017? I was slightly in the same situation as you. I had 2 charges adjudicated at the same time. PSP raised me to a tier 3 due to that, In February of this year (2017) I received a letter from PSP telling mr that I was reclassified as a tier 2, which it would have been under SONRA. However my case is from 2004 so I actually fall under the latest ruling. I think you may also be due relief under the “same act” provision that got me off of tier 3.
Also if you took a plea and it did not include ML at the time, then I also believe you can get removed on those grounds alone, as plea agreements are contracts and not subject to the whims of the PSP