@ your linky stuff:
I know that the deck had success in the past. That wasn't what I was asking for. My question was basically if it is smart to play with the splash and if it improves Matchups. Because the last like 30 posts were either a discussion about which blue tutor or just a decklist - oftentimes including ridiculous cardchoices.

My sideboard looks like this by the way:
4 Chalice
4 Armageddon
4 Crusher
3 Ancient Grudge