Conteh tough but clear ud. I think he'd be particularly successfull with the left jab.
(He seemed to have great success with it against Finnegan if you think thats a valid comparison)
I can see Marvin slinging over some left hands and hurting Conteh a couple of times but Johns powers of recovery were allways good.
**** me the 70's and early 80's were a tough time to be a LH.
If RJJ were around at the time he'd be praying for a SM division to be formed.