I remember them becoming deselected ..?

The lings were first given to the computer with the upgrade researched, then back to the players (causing the deselection). Just different from giving a ling in some remote part of the map but it still works.

Yea, falk it was a typo but how does he have 70 posts per day? He hasn't even been here for a day..?

impossible since u cant remove the rechearch since the fast lings diapear after like 5 puzzles
how is that possible??

I have no idea how they could have made the tech disappear, unless they did swap the lings.

maybe the first ling was slowed down with burrowed units and then the burrowed units were removed.

Hmm, Ahli does have a bit of a point, he could have increased their speed with the upgrade, then used burrowed units to slow them down when he needed to.

Not really, because you can use a death count to make the burrowed units only move to you every 6 trigger loops, and then if you want them to go even slower, you increase it to once every 2 trigger loops, or every loop.

well again the ling would act strange if he is slowed down by borrowed unit and he doesnt do that in the puzzling
there must be another way of doing this..

Okay falkoner is right, After you beat the mutalisk room and get the legs, It's a different unit most likely belonging to a comp with speed upgrade then givin to each player, After you use the speed legs for the race puzzle your lings appear to just be moved, however I'm sure they are removed and replaced with normal lings.

// Speed upgrade. Gives units to CPU and then back.
Players("Force 1");

Conditions {
Bring("Force 1", "Exactly", 3, "Zerg Zergling", "Location 91", 0);
}

Actions {
GiveUnits(3, "Zerg Zergling", "Force 1", "Location 91", "Player 6", 0);
GiveUnits(1, "Zerg Zergling", "Player 6", "Location 91", "Player 1", 0);
GiveUnits(1, "Zerg Zergling", "Player 6", "Location 91", "Player 2", 0);
GiveUnits(1, "Zerg Zergling", "Player 6", "Location 91", "Player 3", 0);
SetSwitch("Switch 27", "Set", 0);
}

// Acquire heavy weights
Players("Player 6");

Conditions {
Bring("Force 1", "At Least", 1, "Men", "Location 35", "Unit Type Used");
Bring("Force 1", "At Least", 1, "Men", "Location 37", "Unit Type Used");
Bring("Force 1", "At Least", 1, "Men", "Location 28", "Unit Type Used");
}

Actions {
SetSwitch("Switch 17", "Set", "Always Display");
SetSwitch("Switch 62", "Set", "Always Display");
}

// Move locations to slow down
Players("Player 6");

Conditions {
Switch("Switch 17", "Set", 0);
}

Actions {
MoveLocation("Location 35", "Zerg Zergling", "Player 1", "Location 63", "Always Display" | "Unit Type Used");
MoveLocation("Location 37", "Zerg Zergling", "Player 2", "Location 63", "Always Display" | "Unit Type Used");
MoveLocation("Location 28", "Zerg Zergling", "Player 3", "Location 63", "Always Display" | "Unit Type Used");
PreserveTrigger("Always Display");
}

// Slow down units (why would you split this into 3 triggers? O.o)
Players("Player 6");

Conditions {
Switch("Switch 17", "Set", 0);
}

Actions {
MoveUnit(3, "Zerg Zergling", "Player 7", "Location 63", "Location 35", "Always Display" | "Unit Type Used");
PreserveTrigger("Always Display");
}

Players("Player 6");

Conditions {
Switch("Switch 17", "Set", 0);
}

Actions {
MoveUnit(3, "Zerg Zergling", "Player 7", "Location 63", "Location 37", "Always Display" | "Unit Type Used");
PreserveTrigger("Always Display");
}

Players("Player 6");

Conditions {
Switch("Switch 17", "Set", 0);
}

Actions {
MoveUnit(3, "Zerg Zergling", "Player 7", "Location 63", "Location 28", "Always Display" | "Unit Type Used");
PreserveTrigger("Always Display");
}