OK, I think I used some confusing terms here. Cmoulder is talking flaps, I am talking about the flaperons that Idialed in to the ailerons, because I didn't kit-bash the ARFthat hard yet and have no separate flaps. I have "flaperoned"5 planes:3 fun fly's, anExtra and a home design- all needed a tad of up elevator when flapERONs were dropped cruising along at 1/2 throttle. My flaperon to elevator mixes have always needed up elevator to counter the tendency of dropping both flaperons in terms of pitch in order to hold altitude. I always do this mix incase I inadvertently throw the flap switch: it will still fly somewhat normally.
Dropping flaperons in level flight at 1/2 throttle drops the nose. It improves lift and reduces landing speed, but the increased drag below the wing CL also adjusts the pitch (nose down) and causes loss of altitude if I don't put in a little up elevator. I have always seen this effect. I have also advised people to ad-a-tad of up elevator mix on normal flaps- and it worked. Don't need a sudden pitch change if you bump the switch, IMHO. Personal choice, I guess. By the same token, spoilerONs tend to nose it up in my experience. If you don't put in down either with a mix, or by hand, it will just nose up more and more and could stall....

As far as crosswind/puff tolerance in landings, again subject to personal taste, if it is blowing like all getout, and I still choose to fly-
I will take a wingy plane (such as this Xtra at 6#13oz) and point the spoilerons up10-20 degrees for landing, but only if Ihave a mix dialed in to comp the "pitch up" tendency. I haven't heard or read about flaperons causing tip stalling, but I've lived it!! By that same token, spoilerons speed up the landing (power added) and cause the plane to be rock solid in puffs and crosswinds, because the landing speed is now closer to the windspeed/variation so that the plane doesn't juststall out of the sky if theres a puff: flat to nose down landings are more gust and crosswind tolerant.