I have several different setups. I currently own a Godin/Baggs, and a Brian Moore/RMC, along with a Roland Ready strat/GK-2A, Gibson Les Paul with an external GK-3, and a small run, boutique Exotica, with an internal GK-3. Generally, I have found the following to be true. With Roland VG units, including the VG-99, the GK series pickups offer better performance. The sounds appear to be truer to the intended models. For midi tracking on Roland GR units, the Baggs and RMC units performed better. I have not had enough experience with the guitar to midi feature on the VG-99 to offer an opinion of performance with various pickups and that feature.