I'm currently using 10lb fireline crystal and love it. Low memory and great casting distance. Really strong as well, put it to the test the other day fighting a salmon. Spiderwire invis never tried but I did use the spiderwire original before and it was horrible. The color started to fade and was not very strong at all compare to the fireline. On the side note I believe the fireline was voted #1 line! (so says the packaging)