I don't seem to have your problems with XPerl... the base default settings work fine for me - the health bar is by default 3x as big as the mana bar and easy to notice, plus it turns yellow and then red as it gets lower, and you can change the % where it changes colors, etc. Honestly I didn't have to make any changes to XPerl to make it exactly how I wanted. The only thing I've changed on it is to set the "basic threat meter" on which is AWESOME because I only need XPerl on my main and I can see a little threat indicator over all 4 of my shamans frames that goes up and down as they build/lose threat.