As much as i love to beat the bag and shoot 3d's, for me, my favorite and most effective form of practice is just good ole stump shooting. For me, nothing puts my good and bad habits into perspective more than a little stumpin.
What is your favorite and most effective form of practice?

I have to agree. It is quicker and easier to jump out the door and shoot a few rounds into the target.  During deer season I like to shoot from elevated positions, as I hunt from tree stands alot.  But I find the variety of distances and angles found in stump shooting to be the best.

stump shooting is by far my fave archery activity ... shooting spots at 18-20 yarsd , 300 rounds etc is a great way to check form and consistency and an often a humbling experience

Mixing it up with some roving long shots , whacking stumps after some 300 rounds will , for me , show a vast improvement in consistant accuracy

I didn't get the camp name "Stumpkiller" from lugging a foam deer around.      

I had/have the reputation of enjoying roving and stump shooting more than hunting.      

Lots more action and less mess.     :D

I'm not good at shooting target dots if it's not 3-D.  I prefer 3-D or shooting at objects in the wild.  I do more 3-D than stump shooting, though.

Like the rest, stumping is sure fun and so much more realistic.  However, I also practice real hunting situations, shooting with my body twisted on one knee, shooting with the target in front of me, or at my side, whatever I can do to recreate past hunting shots as well as anticipated hunting shots.  I shoot at my 3-d deer, or some target (like a piece of foam or a leaf on a hill side), whatever.

Bob.

Stumping is the best.......

Squirrel hunting.

I'd call it practice because half of my shots are stump shooting shots and the other half are not always as effective as I would be hunting with a rifle.

My buddies and I are shooting at our local indoor range often these days. We play "follow the leader" 1st guy calls a shot,like.."the ear on the Fox target" (paper target on foam backwall) or "The deers eye" (again paper targets) but it is alot of fun,and really makes an archer "zero in" fellow member sticksandstones comes up with some killer drills as well,like "timed 5 arrow shot sequences" or shooting foam golf balls of tees. The last one we did was like a police academy shooting drill. With a paper target of a pirate holding a maiden captive,that you had to get a head shot on without touching the maiden,or a young boy paper target,with an apple on his head! Just like William Tell! It is a blast making archery games. Tic-Tac-Toe is another one. Good times,rat'

Chasing ground squirrels. Do it all year long out here. Hit more clods and rocks than squeeks.

Shooting cans and dandelions  in the yard.

The most fun is probably a 3d course, with stumping a real close second. Most effective for me, shooting instinctive, is shooting 'after hours' on a bright night, or with just the target visible. Shooting in the dark has helped me to concentrate on only my target, and let my shooting be as natural as it can be, without 'trying' to shoot in a specific way. It might actually be the most fun too. It's really something to draw and release, not being able to see your arrow in flight, and walk up to the target and see a good hit.

stump shooting for sure or lumps of dirt

Guys, sorry to get a tad off topic, but with so many of you stump shooting, I've noticed that lots of guys use blunt points or judos and such.  
   As someone who does not stump shoot much, I ask, does anyone just use field points?  With those other points, they would just bounce off.  I think for me, I'd like to see my arrow stick in whatever target I'm shooting at.

Same here, stumping. Specially with the grand daughters. Great practice and fun.

My most effective practice is 3-D when I ignore the score rings and just pick a spot and go for a kill shot as if the target were a real animal. Works for me.

definitly with Broadheads but target are difficult to find ...

ncheels, blunts are a must have when stumping. They will stick in all but the hardest of stumps (in which case a field point may bounce back as well or get stuck). There are a few different ones available, and they don't bury themselves in the dirt and under the leaves as bad as field points. Try them and you'll be pleased.

What Smokin Joe said. Local indoor range has a lot of 3D's. fun to play follow the leader with a bunch of wheelie guys and have them worry about rings and me only worry about kill shots, or hitting the spot next to "your last shot".

ncheels; I stump shoot a lot, lose and break lots of arrows.I definitely prefer Judo's over blunts for stumping. Harder to lose (less likely to bury), less likely to break when they hit a hard stump or tree (they absorb a little impact, blunts don't).