Ive got Looks on my Shockproof and SPDs on my trike. I originally had SPDs on both but I found I ended up getting a bunch of hotfoot and cramping problems on the Shockproof. Whether it had something to do with a smaller contact platform, higher BB, or whatever, the Looks(and the corresponding new shoes) solved those problems. I have no complaints about the Looks except how quickly the cleats wear. Maybe the Looks style racing SPDs would be a good compromise?