Surley it would give you more tinkering time?
Personally I enjoyed the format BUT thats probably because I was on pole for the qualifying and not in the middle of the pack. I know a few people got mauled on the first corner in every one of the three qualifier mass starts in the top heat.
With qualifying for me you are racing against the clock, not each other, and because your time doesn't start till you cross the loop on the staggered start your racing against your own clock. With the mass starts we had I think a few people forgot they were qualifiying, especially at the start.
I liked the 6 minute racing though

Gave you that extra bit of time to catch up if you made a mistake.

Well assuming you didn't have a dodgy speedo like me
P.s. I think chimp didn't like it because it was an extra minute for him to get lapped in..