The only "pulling" I like to do on a bike is myself. I have done group rides numerous times. I am not enamored to riding with others for that long. I am okay with a ride partner, maybe a couple, usually for short periods. I love riding my bikes, but prefer soloing. I do not mind another rider jumping on my tail for a bit of time. If I do not wish for it to continue, I can speed up to pull away, or slow down until they are gone.