Like I said before I believe 6k is the PERFECT alt for KoTH. Valkyrie if you think many whine about the 6k cap more than the 8k cap, where have you been? I also like to b/z sometimes, but I am mostly a t/b pilot, and I believe there are more t/b'rs in KoTH than b/z'rs, therefore giving a little more action to t/b pilots, but not taking anything away from b/z pilots.
If you like to climb straight up on the merge, fly 1 or 2ks below the cap and pull up under the enemy, they will not have many options but to turn if you have enough speed. If you can't do that, maybe you should touch up on your t/b skills.