Nope. Dead wrong.
Wrong wrong. So wrong. Wrong, with a capital wrong.

If you do it your way, all the squash sinks to the bottom and you end up with 3/4 of a glass of weak lemon drink^* and 1/4 of a glass of syrupy goop.

Squash first, so you can measure it.
Ice next.
Finally water, so that it swirls the ice and squash around and mixes it evenly and helps to cool it down.

^{* Simon Quinlank lives.}
( Amish Information Systems hates misplaced, commas, Tue 6 Jul 2010, 15:41, 5 replies)

Abso-bloomin-lutely
Squash, ice, water. It's the only way.
(MrKipling43, Tue 6 Jul 2010, 15:44, closed)

Well obviously!
Only someone who regularly wears their underpants on their head would do it any other way.
(flimflam_machine, Tue 6 Jul 2010, 16:14, closed)

This is so wrong it's almost offensive!!!!!!
( SteveFrench Cardio is for homo's. do you even lift bro?, Tue 6 Jul 2010, 16:20, closed)

Obviously correct.

(Pie of Meat ___°¬¯O¯____\o/_____/\_,____Y¯¯Y, Tue 6 Jul 2010, 17:33, closed)

^^this
is correct
(imallamallama looking forward to llamageddon on, Wed 7 Jul 2010, 23:17, closed)