I agree. While I haven't tested Treasure Cruise, so far I'm loving Dig Through Time (TC's mega Impulse counterpart). One thing I don't think a lot of people realize is how top deck dependent this deck can get, and Sensei's Divining Top and Kozilek only go so far because Top is making the best of a bad situation, and there is only (generally only) one Kozilek to pull us out of topdeck mode. Khans has graced the entire legacy format with two new advantage gaining cards, both which deserve testing especially from us because we don't have to lean as heavily on the delve aspect as other decks. And that is a flaw in the UR Delver decks because from my testing, their goal is to burn their hand to try to burn their opponent to the ground, and delve out of topdeck mode before we come back. That means their deck is built more towards delve than a long game plan, which has cost me a lot of test games with UR (although I will admit I just may be playing the deck wrong).
This is what I'm currently playing:
// Lands
2 Vesuva
4 Glimmerpost
4 Cloudpost
4 Tropical Island
4 Misty Rainforest
3 Polluted Delta
3 Island
1 Eye of Ugin
1 Glacial Chasm
1 Karakas
// Creatures
4 Primeval Titan
1 Trinket Mage
1 Kozilek, Butcher of Truth
1 Ulamog, the Infinite Gyre
1 Emrakul, the Aeons Torn
// Artifacts
2 Candelabra of Tawnos
4 Expedition Map
2 Sensei's Divining Top
//Instants
4 Crop Rotation
4 Brainstorm
3 Dig Through Time
4 Repeal
//Sorceries
2 Show and Tell
// Sideboard
4 Force of Will
4 Flusterstorm
4 Hydroblast
2 Karn Liberated
1 Bojuka Bog
And right now I'm considering moving Bog back to the mainboard because it's more relevant than ever being able to reset opposing Delve count, and also having to wait until game two to beat a dredge deck last night. Losing to an outlier like that is annoying.