Good choices. I prefer the Master Airscrews on trainers simply because the can take a lot of "abuse" and still stay intact. Props on trainers get their fair share of abuse, so I like to have my students us a prop that they don't have to replace every time the prop strikes the ground. Wood props shatter when you even think about touching them to the ground. APC's are ok too, but don't take as much abuse as the Master Airscrew props will. I give this advice to my students to try and save them some money as they are training. Buy the expensive props after you move on to bigger and better planes, but use something now that keeps a few pennies in the pocket.

Hope this helps

Ken