Ok BOSS GM-800 first impression (after using it for over a hour) using gk-2a pickup and gkc-ad converter into the unit. Loving it, however the stock sounds don't do the unit justice. Plenty of nice stuff still but the stuff I was playing with in zenology pro before I got the unit is much better, so it'll be more amazing once I fill the gm-800 with stuff from there.
As for ghost notes, way less then gr-55 from what i remember. However mono mode in gm-800 is a little off putting / weird, but I have to play with the settings more to figure more things out.
However i don't know if it's me or the unit, but the unit seems low in volume? I do have ear issues especially past year and past 2 days been worse then others, as some days are better than others, but I just feel like it's lower in volume than it should be but maybe it's me. Don't hold me to that.
Also why no on/off power button on this gm-800 and no on/off button on the converters? Seems weird there's no on / off button at least on the gm-800 like they have on their other synth products.
NOTE: Using a cheap 13-pin cable will cause notes to stick and ring out and not able to use the volume or s1 / s2 switching on the gk-2a / gk-3 pickup even after setting it up, so make sure you use a quality roland cable. I tried a cheap thin one and that is what happened but then once I switched to a roland one, everything worked.
Ok back to playing a little more for tonight. More info to come as I get used too it.