I'm a Racetech dealer but mostly sell Pro Action.
In fact, I likely won't be selling much Racetech in the future.
I like Racetechs spring calculator but I can get a comparable product for less money through Pro Action.
And your right, there is some things about Racetechs website that I do not like but the spring calculator has always been good.
Further, their directions stink.
They need me to make them all new directions but that's not likely