Yeah, your friend is confused.
The tremolo tightness depends mostly on
string tension, which is a product of string gauge and tuning.
The studs adjust the height of the bridge and/or the action.
Nothing to setup on a SAT30 bridge, but a few pointers to keep in mind.
1. It's not a Floyd and therefore yanking it like there's no tomorrow is not advisable
2. Put Fender Bullet strings on it as they are designed to get stuck in the bridge and don't go out of tune as easy.
3. Very advisable to go to 0.010 gauge string as they are a lot more stable (you'll need to tighten the spring claw holder screws)
4. When changing strings use a pencil to "lubricate" the bridge string slots and the nut string slots.
5. Wind the strings coil like (without overlapping) on the tuning machines
Enjoy your new axe!
ilia
forgot to say, if you are raising or lowering the action (screwing/unscrewing the
trem studs) do not do it with the guitar tuned to pitch.