I always found that my even heavier old C33 was extremely hand holdable. Supported by a neckstrap and two hands underneath it, looking down into the WL finder with the camera close in to your body is an extremely stable position. I could shoot at slower speeds than I ever could with my 35mms with excellent results.
A bit of advice from painfull experience: Avoid using it on a Tiltall style tripod. It is a top heavy camera and when that head tilts unexpectedly and grabs your finger, Boy Howdy! You'll discover a vocabulary of obscenities that even you never dreamed that you knew.