Originals were 1.5" per second.
Thanks Scott, I actually came across three of them a WF6/ 7 and think the other one is an 8WT, I will use the 6WT with my Vision Onki 5WT
I am pretty sure I have a mid-glass from Airflo. One of around 20 odd lines in my box...I have a 7-wt I use as my main loch salmon and sea trout intermediate, and I regard it as an 'intermediate intermediate' - somewhere between an Airflo slow glass and a fast glass.
I have a Cortland SL DT #5 floater that I bought in 1988 and am still using. It was used often for a couple of years and then forgotten about in a box in a shed for 23 yrs. I have used the original Cortland line cleaner that came with it, and a treatment with Permaplas and it is still fineOriginals were 1.5" per second.
What is more noticeable is how well they lasted, way beyond lifespan of any other cortland , and indeed other makes of line!