2 mascara questions - has anyone tried Maybelline Pulse Perfection or the new CoverGirl Lashblast LENGTH?

I tried the Pulse Perfection and it didn't work at all! It clumped my eye lashes like crazy. But I did try Lashblast length and LOVED it. I didn't really see a difference in Lashblast and or Lashblast length though! They both work really well!