Lightning Bolt is for sure not to "weak" for the SB...
While not being a StoP, it is great in exactly the MU's where you need it: Zoo / Merfolk / Goblins + its superb vs decks like Sui / random aggro like white weenie etc. ...
Even vs. the Nassif.dec i would board them in (together with the red blasts) since it handles Confidants (which is the most annoying card ever vs. dreadstill) / Predator / Sower of temptation.
I've tested the bolts vs. all theese MU's now and they really help alot (still running the straight UR-List from Hannigan which i estimate to be a bit better then any list running goyfs cause of the manabase / the option to play blood moons in the SB)

So this is the build i'm going to play in Milano this WE:

//Lands:
4x flooded strand
2x polluted delta
4x mishra's factory
3x wasteland
5x island
3x volcanic island

//Creatures:
4x phyrexian dreadnought
3x trinket mage

//Other spells (blue):
4x brainstorm
4x stifle
2x trickbind
4x daze
4x standstill
4x force of will
3x counterbalance
3x spell snare

//Other artifacts:
2x sensei's divining top
1x engineered explosives
1x crucible of worlds


//SB:
2x blue elemental blast
3x red elemental blast
3x lightning bolt
2x pyroclasm
2x blood moon
1x engineered explosives
2x relic of progenitus

There still remains the possibility of cutting a standstill / daze / the crucible for an additional c-balance and a top of course.

Greetz,
Marius Hausmann