Really? Can it be done? Any side effect if it gets many rejects?
reject meaning your miner calc hash, but it hash was not correct.TT algo have some different way to calc hashes, and only one way same as X11.
you calc only X11 by D3, and sometime it's hash correct for TT algo.
No, it's sooooooo badly way to use D3 (in stock firmware) to dig TT algo (MachineCoin).
May be some custom firmware will correctly generate TT hashes. who knows...
I have try but the result is not good!
yes. it's about I talk. 
sooooooo many rejected. wasting time.