I thought I had finally found the perfect ARF. This canopy problem, along withe the published CG problem (published is 4.2 inches aft LE, actual is 6.5 inches) has left me numb and $400.00 poorer.

Here is what the manufacturer has to say about the canopy, and my reply:
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Dear Sir,

If you think the failure was due to manufacturer's defect, please send the
canopy back to us and we will inspect the canopy. Sometimes fastening the
canopy too tight may induce unnecessay stress and cause premature failure.

AirBorne Models
2127-H South Vasco Road
Livermore CA 94550

With best regards,

AirBorne Models

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I used the grommets included with the model, and there is no special instruction in the manual which specifies a maximum torque or notice of over-torque on the mounting hardware.

I hate to spend $6.00 on shipping just so you guys can say it is my fault. I will post my problem on the newsgroups to see if others have had this problem with your canopy.