I'm running -2.4 in my fronts and I daily drive with it. Sure the insides are wearing faster than the middle, but so are the outsides from track days. I'd say it's about even with the middle having the most tread.
For me it feels like a perfect compromise.
OEM M3 GTS Splitter/Wing/Harness Bar/Rear Seat Delete, Ohlin R&T, Brembo BBK, Akrapovic GT4, Alekshop Oil Cooler, ESS Tune/Pulley, Recaro SPG, 18" BBS FI, CAE Shifter, Vorschlag Camber Plates, Bimmerworld Toe-Links/End-Links/Motor Mounts, RD Sport Front Sway, Turner Solid Subframe/Diff Bushings, Awron Gauge.