Easier Mag Test Kit?

[ALang]

Hi everyone,
I hate using test kits at the best of times, but one I really hate to use is the Red Sea kit for magnesium. I never know if I am doing right, and all that shaking in between tiny drops of reagents is VERY tedious and extremely time-consuming.
So... is anyone using a different brand of test kit for mag that is not too bad??
Since test kits are pretty pricey, I want to buy the right one.