I was taught , and have always practiced ,using the full RLA and it has served me well over the years. The saying goes " any rwy behind you on the roll is the most useless real estate in the world".
Also a proper W&B within the C of G limits is critical ,for max effective control ,during T/O with an engine failure.
A pre T/O briefing should be done on every flt to help you visualize and review your options.
Never become complacent. Life is too darn good to waste on dying.