[sdiy] What's a good velocity # for note loud vs soft?

[MTG]

Suppose you have a MIDI synth that can only play two velocity levels... what 
do you think would be a good MIDI velocity for the crossover point?  I know 
that some non-velocity synths use a value way less that 0x7F so their 
note-on's should still trigger the loud sound.  Anyone got a feeling for 
what that velocity might be?  Maybe 0x01 - 0x3E for soft and 0x3F to 0x7F 
for loud?

GB
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