I got this first message PM'd to me a few days back:
Hi Eric,
Last night I took a quick look at your TPS list since I play it for about year now... There were 3 things bothering me:
-Why don't you run an Academy?
-Why did you exclude mana vault? I think this card is amazing in TPS since it helps powering out your big threats _so_ easily (think Bargain / Jar etc.)
-Could one of the Whispers be a Time Walk? Eventhough Walk breaks of your storm chain, untapping is good in some situations.
I hope you'll reply or post some info in the TPS topic

Thanks,
Lex Bergsma
1) Academy is not the land you want in opening hands, its more of the land you want to play on turn 3 so you have extra mana to combo out with. If you want Academy in the deck, go for it. It probably belongs in the deck. I've had a lot of problems though in the past (specifically with IT) in which drawing academy has cost me the game b/c either it produces no mana or blue instead of black. If you've got a lot of artifact accel, then you may not need additional off color mana.
2) Vault was not included b/c again, this deck is not all about powering out big threats, really fast. Playing a turn 1 Ritual, Vault, into Jar that meets a FoW can be pretty rough, and you may not recover. Even if Jar meets a bounce spell that's going to be rough. I've had my issues with this card in combo, and thus I cut it.
3) If I were still running this deck, I'd probably add it in place of a Night's Whisper or something else. I think this deck needs walk.
I agree one the inclusion of Green and Nights Whisper. Xantid Swarm is much better than Defens Grid, but I think you can use the green more extensive. Have you tested Fastbond? A big problem for decks like these are sideboard cards like Chalice, Arcane Laboratory, In the Eye of Chaos. You will have at most two Chain of Vapor to deal with non-creature hate. As you include green, have you tested Krosan Grip?
Fastbond wins about 1 in 5 games and does nothing in the others.
Krosan Grip sounds cool, but the only card I see it effectively dealing with is arcane lab. I'll stand by my statement I've made in the past, Lab is terrible in Slaver sideboards, 2sphere is much better. Lab is good with tempo cards, and has a perfect home in URBana fish.
I think three Tendrils is one too much. In reality, the only way you can win with so many Tendrils is with Yawgmoth's Will. This might sound strange, but you will seldom have mana to play both and when you have, you will have waited so long that at least one of the Tendrils would have been better of as some kind of buisness, for example Mind's Desire which costs two mana less.
I would have to say that you are doing things very differently than I am. About 50% of the games I win simply Tendrils my opponent out. The other games are won by Yawg Will, Bargain, or Necro. Maybe you're pushing the deck a little too hard?
I haven't really played much vintage since posting this deck. I've 2-fisted the Pitch Long matchup though, and it was an ugly 5-2 in PL's favor. I've been considering switching the G in the deck for White, and simply swapping Swarms for Orim's Chant to help the matchup, also this change would help the storm -> into a tendrils play even more.