They tend to work better if they are!
I've not had any Formulas with hollow axles and both varieties of PX hubs I've had have. Hollow axles are lighter and stronger, otherwise I'm sure there is nothing to separate them.
@miro_o started
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They tend to work better if they are!
I've not had any Formulas with hollow axles and both varieties of PX hubs I've had have. Hollow axles are lighter and stronger, otherwise I'm sure there is nothing to separate them.