I'm not sure what track your talking about specifically but, yeah, when Ace came back in 2001 he was hugely influenced by Eminem's rhyme schemes, most notably on SSLP. I don't think there's a specific track you mean, but Ace was so influenced by Em when he came back that people started to think that it was Eminem who was influenced by Ace (in some weird time-warped society, I assume)
He used multies very occasionally on his first album then not at all on SH or SIC - only started to use them regularly in 2001-onwards, obviously influenced by Em.
If you watch this video and get to the bit where they talk about Hellbound, Ace knows Em's verse off by heart.






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