A great and weird raid night

I find both weird and exciting when things go smooth where you were foreseeing a big disaster. Last friday night we went to raid ICC. I arrived late since I had a meeting to attend but made it on time to get into the Gunship Battle, where one of the tanks had to leave. So I got my pally up and tanked at the Alliance ship, while the other tank went for the mage in the Horde ship. This fight really seems a joke after Lord Marrowgar and Lady Deathwhisper, and specially when considering the next one, Deathbringer Saurfang. It's like some kind of holidays with free loot. Anyway we faced Saurfang and even we hadn't the most suitable classes to kite and take down the beasts easily we managed to kill him on third or fourth try. We lacked enough firepower for any of the next bosses, so we just cleaned some trash (and suffered an horrible death at Precious when he was at 8% or so) to get some rep.
Some people had to leave and we didn't have replacements to continue in ICC, so after filling the empty spots people asked where to go. Since we didn't have WG to try the new boss I proposed to take a shot at Trial of the Crusader. I knew I was calling for doom, since the only times our guild tried that instance without people from other friendly guilds it ended in an utter disaster (and call it coincidence, but I was never on these tries), but victory is only for the brave. There we went and I tried to explain tactics since I was one of the few that did the instance several times (in run with a friendly guild), but never as tank, so I was very afraid of encounters like the worms and the Twin Val'Kyrs. Surprisingly the run went like a (almost) charm. We killed the Beasts of Northrend in one go with only one casualty. Lord Jaraxxus was strangely the one that most problems gave and we wiped three times at him. Then the weirdest of all: the Faction Champions and Twin Val'kyrs were oneshotted without any problem. How can we do the most complicated and not the easiest fights? Keep in mind I didn't have much idea about the strat in Twins, trying to remember how I did it with the other guild, which auras to pick up at start and so. Finally I said: "ok, more or less I remember it was this way, let DBM tell you when to switch to what colour". And it worked, I couldn't believe it. Then Anub died at the second try and we finished ToC10 for the first time with only guild members.
People was still hungry for more (completing ToC10 was like an adrenaline injection) so the only possibilities were Naxx/CoA (eazy emblemz!) or take a tour through Ulduar. And there we went, some of us switching to alts since few items we could get from that place that were worthy. Flame Leviathan (sorry, Golf Caddy!), Razorscale and XT-002 Deconstructor were easily stomped to the ground. We skipped Ignis and went in the Antechamber, but instead of going for the easy Kologarn the main tank decided to take the Iron Council in hard more (leaving Steelbreaker the last one alive). We failed and wiped and since it was very late (around 2:00 AM) we decided to call it quits without any bitter sensation. It was a great raiding night for our humble guild. I was feeling both great and weird, since it was really great clearing ToC10 when before people couldn't even finish Beasts, but also had this strange sensation that maybe stars were aligned in the right position and next time we go there we won't get past the jormungars.
I hope I'm totally wrong about this sensation.