Re: 1U servers are right in the zone...
>>21kg - under the male recommended limit, over the female recommended limit.
FWIW... the USPS (postal) delivery person serving my neighborhood is a woman.
Last fall I saw her delivering a big package & later asked what the limit is for USPS workers.
She informed me the limit is 70 pounds (approx 31.75 KG ) which surprised me... if I remember, typical warehouse jobs in my area only require ability to lift 50 LBs.
As for my attitude, I've been approx. 80% pro when working with or being supervised by a woman.
20% con nothing to do with gender... I just couldn't stand a couple individuals.
(and they couldn't stand me either).
Since (as far as I know), nobody gets along with everyone.
So in that respect I will consider myself "average" until proven otherwise.