I am a follower of the Shaafi' Math-hab.

Answer

You will be justified to come over to the Hanafi Math-hab, only if you lack expert guidance in the Shaafi' Math-hab of which you are a follower. You may adopt the Hanafi Math-hab only for a genuine Deeni reason, not for any worldly reason. If it is to gain sound knowledge for the purpose of practising, then your adoption of the Hanafi Math-hab will be correct. In fact, Imaam Tahaawi too was at one stage a Shaafi'. Later he accepted the Hanafi Math-hab.