Since you seem to go through them like roasted pistachios, why don't you do another service to the community and try this: http://abcvacuumwarehouse.com/pro-team-procare-15xp-upright-vacuum.html
It sure looks more professional and if it vacuums well and lasts just a year it will still be the same price.
And if it passes, what you call your zoo test, please let us know.
And look at the positives: The landfill dump sites in SCruz will last a lot longer
Ive been using the same riccar vacuums for the last 3 to 4 years why u been playing with sharks. What about their new professional shark models they sell?