couple of comments ..
(a) you could push the thrust to the Rated Limit in use with safety
but do it reasonably slowly to avoid any dynamic effects which might surprise the chaps up front
(b) the certification Vmc speeds are constrained for a variety of variables and the today's failure real world figures generally will be lower ... the problem is that the pilot doesn't know where the real world figure is .. so one is better off treading warily and conservatively. CG, especially, is a significant driver.