Thanks for all the info apwachh0lz. I never muscle anything off the runway for just the reasons you stated. I let all my airplanes start flying before they lift off the runway if you know what I mean. I have a variaty of airplanes, some with a great power to weight ratio and some with a low ratio. I will muscle around some of the planes in the air (using that great thrust) but I found on take off, even with the high thrust to weight ratios, it is best to just get some speed up and the plane will just lift off the runway when it is ready.