User blog comment:Rapacious/Rapacious's sexy guide to understanding ranged AD builds/@comment-4743916-20120201041002/@comment-3238314-20120201071826

Tristana actually has 550 base range, and by lvl 5-6 when your first return to base should be, you'll have 595 range, so i included her straight into the high range carry list.

Regarding when to get wriggle's, you should get it not when you're doing bad in a lane, but when you can use the advantages i described to make it pay back for itself. I recommend getting it when you're doing ok in lane, and want to maintain the lead, or increase it even further safely.

The gold difference between it and triple doran's is actually 175 G, so it's not that big of a setback, it's just farming 1 more creep wave.

You want to get wriggle's if started with boots +3 potions, or started with cloth + 5 potions, but you can make an exception if you are doing well enough such that you know that getting a doran's + wriggle's won't set you back hard enough to not be able to get it for when it matters.