Do you think my shy almost two year old Sheltie could do agility?

I have two young Shelties. My female just turned two and is proving to be very promising at agility. She got two scores of 198 at her first two trials. She is very outgoing, energetic, intelligent, and quick. She is also very sweet. My male is also sweet but much more reserve. He is weary of new things like new people, places, and dogs. Because of this, I never took him to obedience and agility cles. I did teach him basic obedience at home though and he's mastered sit, down, come, and long stays. I tried to teach him to jump over a make-shift hurdle but he was a bit scared of it! I thought if I took him to watch a cl with my female in it (they are best friends and play together all the time) that I could see if he is interested. Has anyone seen a shy dog do agility? I mean, he's not a total coward or anything. He is very affectionate and likes to be pet by new people after checking them out. And he's equally smart. Should I give it a shot with him?