ID these effects/transitions?

Nicky Romero @ Glow Washington 12.30.11 (PART 1)

http://soundcloud.com/nickyromero/ni...low-washington

Check out Nicky romero's latest mix.. I'm gonna list you times where he does crazy transitions....i wanna know which effects do you guys think he uses, i wanna recreate some of them myself..

10:37-10:52
15:40-15:53, something like a delay with freeze effect, but then he has like 2 lazers after it, i don't know how he pulled it.
23:23-23:30, he echo freezes it but there's something that kinda distorts the sound (like a small speed up) this too, i don't know what it is.
47:50-48:02 what delay is that? t3delay?

It's funny how you find how certain dj's love an effect, nicky seems to like delay alot, and porter robinson is a reverb whore.