Join Date: Jan 2013
Location: the real Western Mass
2012 VV w/ABS 23K miles
Frnt & Rear pads are at aprox 50% 2 up riding 30% of these miles. I suspect you are using way to much brake.
As for replacement pads that's a personal choice can go with harder pads which will last longer but wear the disc sooner, go softer and they can feel sponge or stay with OEM.
You might want to also change your brake fluid, I know Kaw says every 2 years and your there mileage wise, you will notice a more positive braking action.
1983 Honda Shadow VT750 - Harley Killer
1987 Yamaha Venture Royale
2005 Yamahe V-Star - Yarley
2012 Kawasaki Voyager - Weeping Angel