Looks like I'm going to pick up a pair of Grado iGi until I can afford the ER4s next month. There's a store just down the street from me that caries Groto products (I love Portland). I'll probably get my HF5's replaced in the near future, as well.
Anyway, I'll listen for a few days and post a comparison. Does anybody have any advice for testing procedures? I know that the Grotos will need a lengthy break-in period, but other than that I'm just going to be reviewing based on my opinion.
Why not order some HF3's from Cowboom? They're $65 right now.