There's nothing regular about them. They're valved specifically to MM's specs. I don't know what the valving is.
What is your intended use, and what spring rates are you gonna run?
The 03's will offer a relatively plush ride, and still handle significant spring rates... but for heavy track use... you'd probably want a little more damping.
The "regular" H1 struts have a valving of 5.5/2
The 2000 Cobra R struts have a valving of 6/1.5 (and they're supposedly the same as the 03's).
The 03 struts have wrap-around spindle mounts, which can easily be used to support a coil-over sleave... so you don't need a pricie clamp collar or special sleave... just the proper diameter sleave (the bils are a little larger than most struts).
I HIGHLY recommend front coil-overs. The ride/performance is great... and they don't cost much with the 03 struts... you can get the hardware from www.colemanracing.com
The 03 struts should work well with 10"-350# coil-over springs... and alright with 8"-425# springs. If you wanna go heavier for track use... get them specially valved.
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