I've never tried the filly or the latigo (though I did just order a latigo to try) . I've got a bridle leather strop from whippeddog and the SRD Premium II. I haven't touched the one from whipped dog in a while. I really like the super smooth, effortless draw of the premium II. If the filly is smooth with minimal draw, get the premium II so you get the SRD look.