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Yes I do dissagree. A coreless motor cannot be made as rugged as a cored motor. They are not made in larger sizes for that and other reasons. Take a look at a drawing of the coreless motor. Note that the armeture is cup shaped and only supported on one end. It also has no metal core to serve as a heat sink. Its much more likely to burn out if stalled.
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dirtybird,

not made in larger sizes? the Hitec 5955 is a coreless motor servo, its the most powerfull servo for an aeroplane that Hitec manufacture in a standard size heat sink case.

And lay off the platitudes please.

Mike