the reason that I dont like the dunlops is that my cousin had them on his three quads and every time that we want out one if not all his quads would get a flat but my 3wheeler never got a single flat in the six outings that we rode together we all went the same places. that is why I asked the dealer if he would be willing to trade tires. also alot of the trails that I ride I have taken my truck on with my BFG AT I could not make it up but when I bought my super swampers I went through every thing twice as easy as before and a lot of stuff I could not go up before. this makes me whant a more agressive tire.

 

Ok, Like I said, I really have no idea of the conditions there, so I'm not trying to convince you of anything. I'm just curious.

Also, think about this. Your BFG's are not so good as your Super Swampers in some conditions, but there are lots of time when the BFG A/T is a much better choice of tire. (I know, I just put a set of those on my truck rather than the M/Ts)

Just keep in mind the kind of riding you are really going to be doing.

I agree with what Newf said about the Bearclaws and Dirt Devils being good choices, and they are a very good compromise for some one who wants a heavier tire, but doesn't need a full time mud tire.

 

Getting back to the Question, "AC 400i or KQ"...
I own a Suzuki King also. I like the ability to shift to four wheel lock. Matter of fact, I altered it so I can shift to lock in any gear. I added SuperTrapp Exhaust and Dyno Jet Carb Kit. It has power on the low end but soon runs out of power to go any faster than a APC (Armored Personnel Carrier). It's a tuff little buggy. If you're a beginner, it's a nice machine to ride and not have to worry much about getting stuck in water holes that the others will avoid.
On the other hand, the 400cc. engine will give you power you can live with for a long time. Be it the AC, Yami, Kawi or Zuki, you should be happy with the power of the 4x4. Just remember, some guy on a King Quad, may someday have to pull you out of the hole anyway. So don't knock the little guys too much... If I were you, I'd buy the tires at the same time as the quad. MT's give a smoother ride on hard surface but AT's will get you out of the mud... Happy muddin'...
Chuck