- Jan 19, 2009
- Reaction score
I've been using mostly F20 Econojet motors, but due to the new, very high prices for these, I'm considering getting a 29 40-120 case. Most of my rockets fly great on the F20 with the 4 second delay. How does the F40 compare? The rockets I use them in are my Initiator, Warthog, Graduator, Onyx, and Tiny Pterodactyl. Would I need to move up to the 7 second delay on the F40's?