I have them on the highest setting. Geometry didn't change much at all...ride is VERY smooth with the 5100's all the way around and I feel like it has a good stance. Looks identical next to a friends 2014 with a RC 2.5 level but a much smoother ride.
2015 Z71 Silverado 5.3 V8 Bilstein 5100 adjustable strut 2" Level Front Bilstein 5100 Rear Shocks Toyo Open Country AT2 275/65/20 MHT Fuel Nutz 20x9 wheels
Magnaflow 18" Dual Exhaust
Couple of pics plus a before and after
2015 Z71 Silverado 5.3 V8 Bilstein 5100 adjustable strut 2" Level Front Bilstein 5100 Rear Shocks Toyo Open Country AT2 275/65/20 MHT Fuel Nutz 20x9 wheels
Magnaflow 18" Dual Exhaust Zero Rub
Couple of pics including a Before and After