If it is not one thing, it is another. With the recent surge of orders we have just about run out of SDR21 barrel material, and the supplier that was so consistently quick and reliable indicates they cannot.. This may take awhile to sort out. Orders already in the queue at this moment are okay, but new orders may be delayed pending finding a new supplier, or we may have to resort to schedule 40 material (thicker, tighter for the tennis balls).
On another component front, the triggers appear to again be available from Harbor Freight online, hopefully this will continue.
The 4″ PVC endcaps used in the CSV19 have also been in short supply lately. The 3″ parts used in the CSV17 are easier to find. We have enough for the moment.
We have switched over to the CSV17 launcher for just about all our field use. It is smaller and lighter and it reaches to 160 feet or more. This seems to be more than enough for most purposes. The 3″ joints are a bit easier to cement than the 4″ joints, and the CSV17 fits into a much smaller container for storage and transportation. It is also lighter and uses less energy per launch, and allows the option of using 12 gram CO2 cylinders and a bicycle tire adapter for launch power.