if you could find a good teacher in the madhab & you can start learning now then it shouldnt be a big problem. but remember you will get married to a shafi' women & your children would be shafi because that would be the madhab of your comunity & their madrasah. not only will you stand out in you comunity but also in your own family. there will be alot of confusion & the laymen who have no idea about your new madhab will speak bad of you & your madhab & eventually the Imaam of your madhab. it is the ignorence of the people. unless you really have to dont change. im not saying this in support of my madhab but in support of the Deen & unity.