Junkflier I think you might mean 'Vr". Either way that is extremely poor advice. Regardless of how you feel, rotate at Vr because that is the way your performance is calculated and on a limiting runway it will end badly if you use your own little ideas instead of certified data.
250etc don't try to be too academic here! Just look out the window and stop the world going across it sideways. Be very aware and ready to work the ailerons and rudder a little as you lift off, once again look out the window. A glance at the sky pointer is useful too. As Mach E says, use up the engine and don't be in too big a rush to shut it down. After all, if it has seized up or something a delay won't hurt it any more but if it is dying the thrust still available is pure gold for your performance.
Don't rush things, there is very rarely any need to be hasty and an error will be costly. A bit of armchair flying where you literally say out loud all the calls/statements required by your SOPs is a great help I find. If I'm swept up in the moment in the sim I know what I should say and do because I've been there in a virtual sense a few times.