I'm currently using the trykers, but I couldn't find any benefit compared to the supremes, and they have less puncture protection.
Grip on a trike - much over rated. Their primary objective as far as I am concerned: Retain air at all costs.
Kim, you are very bad!
I've never got on with Marathon Racers (too many punctures). I had some Panaracer Minits Tough last summer And they were very fast but I got 10 punctures in 1000 miles. On LEL all the velomobiles used Kojaks which was interesting. One guy gave me two kojaks so I'll try them this summer on my trike. My velomobile has trykers on the front, a marathon on the rear nd I'll probably stick with that.