I have not tried it, but I would think that spoilerons would be a better idea. Flaperons create wash-in at the tips and can increase the likelihood of tip stall, whereas spoilerons create wash-out and make tips stall less likely. Flaperons and spoilerons both shorten the landing by increasing drag, the difference is that with flaperons the nose will be lower on approach and with spoilerons it will be higher. Same result. Shorter landings.

Jim