Blowers

I have a Poulan Pro blower/vac model BVM200VS. It was purchased from Lowe's on 11/15/2010. I have never used anything but the correct gas to oil mix and have used the supplied 2-stroke oil. The blower had always started and run very well. Then, 2-3 weeks ago it stalled out and will not start again. I have checked for spark and am getting it. Replaced the spark plug after checking and setting the appropriate gap. Took apart and cleaned the fuel intake system including blowing out the fuel filter. According to the printed material packed with the blower, it would appear to be under warranty. I have read a lot about this brand/model on line. From what I can gather, the unit has lost compression in the cylinder. This would be the most logical diagnosis given the other causes already ruled out. The loss of compression is most likely due to one of two reasons or both: the piston ring has gotten stuck in the set groove on the piston (which this model is well known for) or the head bolts have vibrated loose enough to compromise compression (another model related flaw). Many of the customer reviews of this blower were quite unfavorable, more than some warning a potential customer against purchase of Poulan. Of those customers that did take the unit in for repair, under warranty, more than 60% were told the problem was not covered and due to improper gas to oil mix. My question is should I take it in and have it checked for possible repair, even under warranty?