The aircraft is not the limit, the pilot is. Legal minimums are often way beyond early IFR pilots' minimum skills. It doesn't matter if one flies a FIKI multi-engines or a simple SEP; the question is: where are you safe? I often practice missed approaches with my '66E under the hood with a safety pilot (never had the chance to reach the real minimums in a precision approach with my SEP). On missed approaches, the procedure is the same with all aircraft: Nose up (it usually already is), Full power, gear up (Johnson bar or not), flaps up, apply Vy and correct your heading with no more than 3° bank. The key is to be at Vy when you approach the minimums (altitude, CDI deflection, etc) so your aircraft already has the proper inercia.
My advice is to stick to the SOPs or you are gonna get killed. They are here for a reason. If your instructor does not agree, change instructor.
My 2 cents. By the way, I'm an Airbus 320 airline pilot as well.