Novak Atom sure it'll be discontinued. Cyclone and Atom maybe 10 years old.

Astro says 500-1000mf 16v. that's good enough. doubling up caps is all over kill. Power caps does one thing in power (Battery). It acts as if another battery. Supplying a constant 6v to ESC.

As old as it is Maintenance of motor, Brushes, truing commutator, springs, & motor caps(suppress sparks w/brushes). Time to upgrade with brushless motor, ESC & lipo's.

If your starting out in hobby, good way to start out, and start a collection. More than me other people will say upgrade, to keep up with the Jone's!!!!

Good Luck!! Have fun!!