I will always be able to stop before V1 and to continue the takeoff after V1, no matter how much runway i have left behind.
Oooh, no, sir, very wrong. MU3001A has got it more...err, "correctly worded" you
should. Emphasize "should".
You wouldn't be so sure of that statement if you ever flied a full pax MD-83 (that's 152 in BC config), with around 15K pounds of fuel, plus some cargo, out of a 8360ft AMSL runway that is around 13000ft long.
V1 is OVER 140KTS, by the time you are rotating you are already in the last 3000ft of runway; plus if there's anything bad about the MD-80 series is their brake efficiency. RTO 1 knot below V1, you "will always be able to stop before V1", you say? Me thinks you'll be using the cow ranch (or the street and then the buildings) further down the runway as means of stopping.