Stephenm52 do you mean that you are using the T2 for recording or the other features that the SD5 seems to not have ?
As an arranger though there are some features that the SD5 have that the T2 does not. Velocity controlled stop/start the reset to beat 1 button. the on the fly live buttons for bass to lowest, instant 2nd voice add on. direct voice pre-selection.
OMG these arranger have so many things that make me go back and forth, it's like a tennis match