Well let us take 99/TT for example FR and UTG.
Since you are playing SSS a limp and a raise on early position gives the impression of a monster hand. It doesn't matter if you raise or limp right?
Example 1 - Table is aggressive.
Preflop:
Hero limp, MP raise 4bb, BU call, sb fold, bb fold, hero ?
What I do here is reraise all in. There is already 10.5 BB dead money might as well grab it or take the coinflip. You are actually trying to give them false information that you have a monster hand.
Example 2 - Table is tight
Hero Raise 3BB - Most of the time you will be able to get the blinds or you will have one caller. If there is one caller standard cbet of 4BB. This usually ends the hand.
Example 3
Hero limps, BU call, SB call, BB check.
Flop - any 3 cards - If both sb and BB check, then standard bet 2BB.
Here I usually stab the dead money, if it is not successful you will know where you're at and can act accordingly on the turn and river.
99/TT is not being advised to play in SSS if you will not consider stats but again you also need to consider your opponets and adjust your play.
These are some of the plays I have adjusted but I never do this against unknowns.