If you're trying to dump energy on landing, learn to slip. Nothing brings a plane down like a hard slip, and you have full control all the way through.

Slipping a warbird with a high wingloading isn't such a great idea, but the stick should do it great, and you can get a little slip going with the acrobatic planes, but you'll want to try it at altitude first, since you can slip yourself into a snaproll if you aren't careful.

Between the options of flaperons or spoilerons, go with spoilerons, you do loose some aileron control, but not as much, and you don't create the stall problems mentioned above, since spoilers lower the AOA of the wing, while flaps raise it.

If you don't mind doing mods on the plane, you could always install air brakes on the fuse or seperate spoilers on the top of the wing, that will get you stopped quick.

Another trick, put a little bit of fuel tubing on the wheel axles to add some drag. Just a little bit of pressure can really shorten the roll out.

On tricycle gear planes, you can also do some aerodynamic braking, where you touch the mains and then pull the nose UP, and hold it up as long as you can while you rull on just the main gear. This creates a lot of drag and slows you down faster than rolling on all 3 wheels will.