I know what you mean about gear and match up. I have a non box arena team (my rogue and a druid friend). It is all luck on who you get. I am in the 1400 range all the time and we still go against fully s3 geared people. It has come down to it, if we see that they are season 3 we just give up cause they usually mow us down in 2 seconds. Blizzard needs to fix the matching s1 should not be going against s3. One week we won 8 out for 10 games because all the teams had no season gear. this week we went 2 out of 10 because the first 5 games where against the same team s3 warrior and s3 pally... Some how they were able to see us stealth (i can understand the druid cause he is a healer, but my rogue is assination with extra points in stealth and they still saw me a mile away without the seeing stealth buff).

What you can do for one week is just play as many games as you can to get practice (forget about the rating), once you are comfortable drop that arena team and make a new one. If you are making a new one every week, just forget about points and get practice that way you don't have to create on every week, probably do it every other week or something.