What construction changes for Trinisphere

[defector]

I'm providing a list simply for the sake of completeness, I'v posted an older version on a different devoted to SB for R/G beats for stax.  My meta, is mainly aggro now, but has a number of players capable of tog, oath, rector/bargain(trix or tendrils), Masknaught, TNT, and Keeper.  This is Minnesota after all.
This thread is about construction/design, and as my favorite archetype was co-invented by member of this site, I've come here for the question.  What goes so that 3Sphere can enter.  In my current list I have cut Tangle Wire.  I did this based on Price of Progress, Rack and Ruin, Artifact Mutation all being nasty instants played in priority order at the beginning of Upkeep.  The Wire wasn't saving me.  3Sphere obviously does little to Rack and Ruin, but it does hurt Mutation and POP.  So far my playtesting has been limited, but I like 3Sphere, by and large it hurts my opponent more than me.  No one has Iced it yet, I wonder if that is a problem.  Please, share some experience with me, as my playtest pool and my tourney pool are in drastic opposition of quality.
thanx,
defector






The List

Mana Base-24-

Mishra's Workshop X4

Polluted Delta X4

Volcanic Island X4

Underground Sea X2

Badlands X2

Grim Monolith

Sol Ring

Mana Vault

Mana Crypt

Lotus Petal

Mox Jet

Mox Pearl

Tolarian Academy

Black Spells-2-

Yawgmoth's Will

Demonic Tutor


Red Spells-5-

Goblin Welder X4

Wheel of Fortune

Blue Spells-6-

Meditate X3

Fact or Fiction

Tinker

Fabricate X1


Artifacts-21-

Trinisphere X4

Sphere of Resistance X4

Smokestack X4

Chalice of the Void X4

Jester's Cap X1

Karn X2

Triskellion X1

Memory Jar X1