I've always got a decision point on any runway where I should be able to pick the tail up. Now if it comes up easy then every thing is in the groove, if it is heavy then I know other opions may need to be exercised. If it doesn't come up at all the take off would be canned. Knowing your A/C flying characteristics I found was far more effective in go, no-go decision making than running your finger along a performance chart
1. Is all the power up?
2. did I remember to select take-off flaps?
3. Hand on 4x4 lever
4. Cancel take-off
Options are limited but useful in recovering the situation.
