Hey foolios.
I would like to change my heads as often as 3 or 4 months but my finances dictate otherwise!!!!!! Plus I am getting married soon which will have an effect on how often I change my heads (well, maybe...my wife to be is pretty freakin sweet).
So, realistically, I change my heads anywhere between 9 and 16 months, I believe when I got my Studio X's I posted about it on this forum and that was at least a year ago.
(
http://www.drummerworld.com/forums/showthread.php?t=66351 )
I also think about buying different heads when I get bored with the sound I have on my kit and have a chirping urge to smuggle some new skins.
Generally I will research different heads for months before actually pulling the trigger on one. I don't believe I have found "my head" (I still go loco from time to time, sorry, pardon the pun), and if I did find the perfect head, I don't think I would be happy to just settle on it and buy it every time I changed heads (that's just boring). I have found some that I favor over the others, though.
As for my research, I will read Musicians' Friend reviews, look and ask questions on forums like this (sometimes about multiple heads, it gets tedious but it's free and I love these things they call message boards), visit the manufacturer's website to see what they say about the technology of the head and what styles it's for, and finally I will try to find videos on youtube demonstrating the head so I can really hear what it sounds like.
HOWEVER! When watching those "head" videos, I don't like company product demonstrations. I find them to be innacurate. I want a live microphone set up in a room somewhere (NOT hooked on the drum) and some guy testing it in a real world situation - not some fancy, preppy production like Remo does with their Ambassadors and Emperors, etc. Even if there's room noise or whatever, I don't care. Just make it real and no fancy compression or any of that junk. That's fine to hear what it sounds like mic'd but that's not what I hear when I play.
Once I've chosen a head type I will either buy one from a store (if I can get to the nearest Guitar Center as there is no stores like that around here, aw shucks), or if I am confident that the head will deliver what I need I will jump ship and take the whole stash of them for my kit. Either then I am disappointed or delightfully enthused. From that point forward I determine what I actually like and dislike in heads.
And from my research I have determined that Evans makes a competetive head for the consumer drumming community.
Not my favorite (!) though I could not say I favor any particular brand. One thing I will say that speaks volumes about your company there sir, is that I have never played an Evans head that I disliked. There was always *something* that I could grab from any one of the head choices I have played on. I can't say the same about Remo, there have been some real stinkers with those gentlemens. I can feel confident that when I choose an Evans head, that though it may not be my perfect cup of tea, I won't regret the purchase entirely and sickeningly trudge my way through the life of the head.
I say good job. But product demos would be nice!