When I originally fitted out my Wilderness Systems Tarpon 120 I used a genuine ram ball on the sidetrax system secured with a ss bolt on each side screwed into my DIY plates along the Track. It was a good solution at the time allowing me to then fit my ram accessories onto the ball such as rod holders and ram tubes. The only problem with it was that I was not able to adjust the position of the ram ball while out on the water without the need for a hex key driver.
The new Yakattack Screw Ball, can be fitted by hand, loosened and tighten by hand and naturally this enables me to move the ball along the track to any position while out on the water. Also on the front side trax I can make the decision to take the complete rod holder with screw ball on and off the kayak for transport or storage, in my case I leave them on, but it would take seconds to take them off.
The screwballs come in different sizes and I have purchased two sizes, the 1" and 1/1/2" Ball sizes, as I have a the rod tubes and holders use the larger size and a camera mount I have made uses the smaller size.
In any case it has been a huge improvement to my earlier DIY option and this is another reason why I think the WS Tarpon Series is so good, it is very easy to customise. Check out the pictures below.....