1/2" Tuff12X from elevation canada, the same place I got the rings. Seems very easy to splice, their 1/2" bull rope was also pretty nice and very easy, I'm surprised my first try at a tight eye actually seems to have turned out pretty good.
New member here but long time lurker. Finally completed my first splice projects, thanks mainly to this forum and YouTube. Pretty happy with them although I will probably end up remaking them since I could use the practice and there are some improvements I would do next time.