If you are running 2 aileron servos and have a 6 channel radio, flaperons are just a radio setup without messing anything up. You don't have to use them, but you can see if they help. Be conservative and start around 15% and try it first 3 mistakes high and get used to flying the plane slower. See if it tends to tip stall and at what speed.

Also pay attention to wind speed. When landing into a decent breeze, many pilots tend to keep the same ground speed on approach, not realizing they can get a lot slower because of the breeze on the nose. As cfircav8r said earlier, pratice coming over the trees (up high at first) just at stall speed, then drop the nose a bit to avoid the stall, flare and land. When I learned landings (over 30 years ago) it was at a State Park where I had to make it over the telephone wires then drop down into the field. Kind of sink or swim. So when I teach people to land, I have them spend a few sessions just flying around the field just above stall speed, because when you are already lined up on approach, it's a bit late to start thinking about bleeding off speed. The problem is, once we get past our trainers and move on to hotter planes, we sometimes forget to get used to flying the new plane slow