Good question,icebird! I think it depends on the size in this matter. Monk performs very well in the waves, the Supershinn shouldt be smoother then the Monk. But its a freestyle board all over. So enough pop, chop eater and no spray.
Have to disagree here. Monk and red will be similar in terms of smoothness in chop but monk can handle alot more speed and still keep it together. The supershinn is not as smooth riding as monk in the chop though it is still very smooth relative to other boards but for a first board I would just go straight for the monk in 42 wide at your weight. Supershinn is noticeably less adept for carving around and more leaning toward load and pop/freestyle.
I have ridden the gintronic (sold it) supershinn, luigi, an I own a monk. The monk can be a fine board for learning as it isn't technical at all to ride but it can be fully wound out and things dont get uncontrollable. Skip the red and get a monk. That is a very special board for charging hard in chop, boosting big air, and laying out big high speed carves. But it is perfectly mellow if you choose to ride it that way so fine for a beginner too.