You want something more substantial than white lithium, preferably something with moly. I mix up a paste of about 50/50 moly assembly lube and wheel bearing grease. And just put the lube on the trans shaft, not the clutch itself. Overlubing can get squished out and thrown on the plate, which isn't good.
"I hope it feels so good to be right. There's nothing more exhilarating than pointing out the shortcomings of others, is there?" Randal Graves