I will discolse this, right off the bat:
I think all Ricos are godawful. Just terrible.
And I have tried them, and gone back to them after a year and tried again...and again...at the suggestion of their fans who kept saying " you should really give it another chance in a while".
Each time, my impression was the same. Didn't matter whether graftonite or metalite.
I am not saying this to be snarky or insult you. If your metalite on tenor makes you happy, good on ya'.
I am responding here to say: spread your wings a bit and try something other than Rico.
There are a LOT of GOOD (read: much better) inexpensive mouthpieces out there that do so much more. Blow freer, sound better, respond better, are fabricated with greater precision.
Bari Esprit
Brilhart Ebolin
Hite Premier (if you are OK with approaching a "middle" tip opening)
Fobes Debut
all jump to mind immediately....they will all blow much 'richer' and 'fuller' sounding than your metalite....and blow more easily as well.