You have a tuning issue more than a head issue. Check that. You have a problem with both. The problem with the heads is that your using heads that are made for, and market to, people that can't tune drums. Any of those EC-2, Hydraulics, on even pinstripes, are devoid of tone right out of the box. If you are having to resort to moon-gels, e-rings, or dead-ass heads, in order to get your drums under control... You are not tuning your them correctly.
Yes... You could use all that crap, and probably even get your drums to not sound like hubcaps, but you'll never be able to get them sounding good that way, either. I promise you. I can't be done. It's Impossible.
I recommend starting with drum heads that are capable of sounding good, even better with heads that WANT to sound good. Here's how you do it: Go the music store and ask them for a 12" head in every model available. If they frown on this, pear down the list to the following: Evans
G2, EC2, Pinstripe, Emperor, Aquarian
Studio X, and Aquarian
2-ply (preferably Double Thins - if they don't have those then whatever 2-ply Aquarian
they have). Take each out, and hold it lightly by the hoop, careful not to touch the actual head. Just the hoop. Holding vertically, perpendicular to the floor, and up at ear level. Strike the center of the head with your finger (the hand not holding up the head, duh). Don't press into it and kill the sound. Don't hit it so hard you knock it out of your hand. Just a quick decent pop in the middle of the head. Listen to the way the drum want' to sound. Heads have sound profile characteristics of their own. Find the head that you thinks sounds the best and has the nicest tone. Give the others back, and buy a whole set of something useful, and a set of reso heads by the same company. Can't stress this enough. Don't mix and match manufactures.
Garbage in, Garbage out. - I don't care how good your drums are, if you use crappy sounding heads, you're gonna have crappy sounding drums. Period.
I Guarantee you, that I can put new set of Studio-Xs on a 1983 CB-700 drum-kit, and make it sound far superior to any Sonor
, or Pearl
set, with EC-2's or Hydraulics on them. That's just a simple fact.
Drum tuning is an Art all to itself. Like any Art-form, to master it, requires practice, care, dedication, and a desire to achieve perfection.
I can help you further, probably. If you don't mind me asking a few questions?
How old are you?
How big are you? (Height, Weight, Shoe size)
How long have you been playing?
How hard do you play?
What type of cymbals do you use?
What type of sticks do you use? (Make, Model, Size, Tip)
Let's make sure you're suitably outfitted first, then we'll get you fixed-up and knock this problem out for you in a Jiffy. Piece of cake.
If anyone else has a similar issue, Go to the music store test the model in the size of your smallest Tom. Pick out one you like, come back here and answer this set of questions (plus what drums you use), and take care of it, too.