Bill White of Bill White Insurance wrote a very good article 10 or 15 years ago on wheel landing a Skywagon. I'm not saying it's the perfect technique, but it's a good place to start. It's on his website but that's not working fro me now so I didn't try to post a link, maybe you can google it for the complete article. But meanwhile here's the core from it, from my pdf:
The Technique
Get established on final. At 1 mile out you should be at 60 knots IAS (depending on
wind conditions), 500 feet above the runway and descending at 500 FPM carrying
about 13"-14" MP with full flaps. Trimmed to hands off. The aircraft should come
over the threshold almost level. When the aircraft is on short final and about 20 feet
agl, you should apply slight back pressure on the yoke (don't touch the power), but
only for 3 to 4 seconds then released back to neutral until wheel contact. This
will slow the decent down to around 200 fpm until contact. The aircraft will contact
the runway in a perfect decent rate eliminating bounce. Remember, do not flair and
do not pull your power until you feel the wheels touch (resist the temptation). This
has to be learned because your natural instinct is always to pull power. Almost
simultaneously when you pull power at wheel contact, come on with as much brakes
as you need and hold neutral yoke, The torque from braking will help keep the tail
up. Then as the speed is reduced and the tail settles come back with the yoke.
Remember, power controls rate of descent, if you reduce your power your descent
rate will increase (even at 2'), then you'll have to flair to compensate and you'll be
chasing the airplane. You want as few changes to correct as possible. This
technique takes out the guess work - if you're low add power, if high reduce. Never
change attitude or trim, ii's simple. A full stall landing has everything changing at the
same time which includes: power, speed, attitude, yoke, visibility and pitch. This is
not as predictable because you're waiting for things to happen, you're chasing it.
This wheel landing technique is near bulletproof if learned correctly. lt is being used
all over the world by pilots much more knowledgeable than l. "MAF" uses wheel
landings at all the airports in ldaho they fly into. That includes Soldier Bar, Allison
Ranch, Bernard, Krassel and more. All you do is cut power, brake and turn off the
runway. Until you learn it correctly, stick with the technique you're most comfortable
with if it works for you. I recommend you practice this with a CFI that really knows
the technique. He can better see your mistakes. I took several hours of training from
"MAF" a few years ago. lt really improved my proficiency. Once correctly learned,
you'll wish you'd known about this years ago. Happy flying!