I would pronounce it [mæsˈjɛɫəʊ]. Same as Hilary Gilbertson and Alton Shen: Mass Yellow. Michael is doing [mæsˈɪjɛɫəʊ]: Massy Yellow, so I hereby deem me close enough.
The proper pronunciation, of course, is [ˈmaɡister ˈoptimus].
I would pronounce it [mæsˈjɛɫəʊ]. Same as Hilary Gilbertson and Alton Shen: Mass Yellow. Michael is doing [mæsˈɪjɛɫəʊ]: Massy Yellow, so I hereby deem me close enough.
The proper pronunciation, of course, is [ˈmaɡister ˈoptimus].