Why is the design of the Spyder
May be it's the fact that you are not using it in the way it was designed. Could it be that the Spyder you have is more a rec - ball than a Sup- Air marker. Don't buy a cart horse to ride in the grand national and expect to get over the first hurdle.
What's that age old saying
A bad workman blames his tools
Apparently the velocity adjuster has an allen key'd grub screw to lock it if so test the velocity, lock the grub screw and leave the key in your bag. If the field judge can't move your adjuster it is then legal.
no toole thats a soldering iron. joe bob has a saudering iron, a mythical tool handed down from generatrion to generation. this will stick/ melt/cut/saw/do the ironing/play ball for you.
you had to question joe bob didnt you?