Manduka ProLite Slippery? Mat suggestions!

Hello,

My Manduka mat is SO slippery, I've done numerous salt washes, and it doesnt seem to help. At some point it was grippy but its back to being slippery. I've had it for less than a year. Any suggestions?

I was also thinking to switch to a Lululemon yoga mat. Are those any good? I know they're made from rubber which is a big plus in my book!