Hi - I have a Macbook (latest OSX) with Logic Pro 9, Yamaha XS7 and a Scarlett audio / midi interface. So far Iâ€™ve used the midi in/out from the Yamaha to the interface with reasonable results. However Iâ€™ve read that results are better (less latency) if I send midi via the Yamahaâ€™s â€˜USB to Hostâ€™ output to the Macbook, so I downloaded the driver and wired it up - it is pretty much plug-and-play. The Yamaha now works fine as a midi controller of the Logic plug-ins, except that the Yamaha sustain pedal now does not apply sustain to any plug-in I use. Iâ€™ve spent hours trying everything and reading manuals, so please HELP!!