Next time, do us all in the IRC channel a favour and figure out what you want to write before posting.
Why should I do that? It's easier to edit my post again after each level. Anyway, unless the new version that Volkov made is significantly better, it looks like I'll have to do an SMW speed run myself. The only problem is that I need to have right shift as my pause button, so if there isn't any way to change that, hopefully someone (aka Blip) will be able to make a patch for me.
Edit: It would be nice if you could tell me how i 'lost' these timeunits, so that I might improve?
Ok, I'll be editting this post again soon and I'll tell you how to save time in each level.
Edit 2:
YI3: Always run across the moving platforms and never touch the backwards moving platforms. You can get 259.
1IG: When you get to the big fire pit, don't jump under the turtle, bounce off of it so you land on the grating as far to the right as possible. At the next big fire pit, jump as late as possible, just before you fall into the fire. Jump as far as you can, and grab onto the grating as late as possible, climb right for a split second, touch the ground, and start running. You can get to the door at 281. I saw someone say it's possible to get there at 282, but I haven't figured out how so I don't know if it's true.
DP1: You don't need to wait for the enemy at the beginning to come up, just run forward at full speed and jump just before you hit it and you'll bounce off of it. At the end, I'm not sure because I was watching it at full speed, but I think you slowed down when you landed on the yellow pipe, so if you did then you should just fly over the green pipe.
DS1: In the room where you get the shell, you could have started flying a split second earlier, but you didn't lose any timeunits there. In the place with the two fish and the P-switch, you don't need to slow down, just make sure you're higher up when you get there and the corner won't be in your way. In the area with the fish with a dragon coin over it, you swam up too slowly. First kill the fish by swinging your cape at it. Then throw the shell up, since you can swim up faster if you're not holding a shell. Catch the shell, and throw it up again, catch it and kill the fish. Swim forward and down, and when you get close to the block, drop the shell, fall down, and hit the block with your cape. This strategy is kind of complicated, but if done correctly you can finish at 258.
DSH: At the beginning, you jumped before you reached full speed. You also delayed too much when passing the ghosts. What you should do is start flying and then you'll be able to pass through the ghosts. I'm not sure why, but for some reason the ghosts will sometimes hurt you anyway, but just try a few times and you'll be able to fall through them. You can get to the first door at 387. I can't figure out how to do the glitch, but if you can get it to work it should save you another 3 timeunits.
SW1: As you fall through the gap, you should tap left so you don't hit the corner (though this probably only saves a few frames so it's not so important). You started the spin jump a little too late. When you get pushed down, you shouldn't fall onto the ground, if done correctly you can fall onto the blocks below. Then when you got pushed through the second set of blocks, you got pushed too far to the left, so you then had to waste time going to the right to get the key. You can finish at 290.
SW2: Same trick as in DS1. To avoid getting slowed down by the corner, throw yoshi up and then catch him. You can finish at 260.
SW3: You took too long to grab the key. You also might have started flying too late but I'm not sure about that. You can finish at 192.
BC: In the door 5 area, you could have ran under one more spiked thing. You can get to the door at 374.
Besides all those mistakes that lost timeunits, there were also some minor mistakes where you just weren't accurate enough.