'a' Roy Jones or 'the' Roy Jones? How many are you seeing? I think a Jones flurry has put you on ***** street.
im 12 stn - i recon if i sparked him on the jaw with my right he'd go down.. but it would have to be a surprise and him not expecting it - like i meet him in the street say "waguan roy?" and before he could answer go for him.. Id feel bad after tho... lol
Once a fighter has been concussed and KO'ed hard his tolerance and ability to take head shots decreases sufficiently. Some even become like robots with an off button being their jaw/temple, just tap them sufficiently on the jaw and they would turn off. Boxers differ from the average jaw not in their ability to take head shots, but to see them coming and tuck the head in and absorb them properly. Hence Jones would likely go down from any well placed shot that was thrown with a relaxed hand and has some power and weight behind it.