The size of spline is a little too thick causing job is more difficult
Based on my experience/practice, the size of spline is a little too thick, it could be 0.145 - 0.15(?). It is very hard to push into the slot!. I completely give up to use this spline. I have to buy same size spline (0.140 in)from a local Orchard hardware store in order to finish my job. Now more than 92 ft is still in my garage, useless and waste money.