i know that a lot of top pros out there say that jacks and
are two of the hardest hands to play, (daniel negreanu, hellmuth and Chann) will never re-raise pre with these hands,unless they are putting in 25% of their stack then they will push or maybe do the "stop and go" from one of the blinds. The truth is, when you and opponent are deepstacked, most of the time against a solid player you will be a slight favourite for a coin flip, and somtimes you will be in a world of sickness to an overpair.
Thats the reason why i like to flat a riase pre with
,JJ, and QQ. (unless you are putting about 20+% of total stack in, then you may aswell push) plus theres the added bonus of flopping a set and milking someone who cant get away from aces or kings.
If you are deepstacked and decide to re-raise with jj, they could put you all in and you now know that you are beat, so you will have to fold the worst hand, and maybe just priced your-self out of flopping the miracle set against someone who cant fold kk or aa.