I have the sno-pro 1 3/8 136 on my SRX and the cobra on my xtx. I liked the sno-pro track so much I tried to get one for my xtx, but they didn't make it in a 144. This track has held up very well, hooks up hard but, I do notice more of a fan effect which scrubs speed. The cobra is a great track, it rotates well and I think it is a excellent choice for a 144. I don't notice the fan effect on the xtx and it seems to do everything pretty well. I like both tracks...for a shorter tracked sled I would choose the sno-pro.