Not impressed if it's the BK-5 action. Yes, it's a step up from those horrible PSR actions (played an S950... hated it!), but it's still sub-par for me.

If Roland had some G70 actions left over, an updated, modern A70 controller would be worth every penny!

I am SO happy the BK-9's action is quite decent. It would have been an awful decision whether to keep it or not if it had have had a 76 version of the BK-5 action.
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An arranger is just a tool. What matters is what you build with it..!