Regarding The Dynam V2 Retractsby Motion RC
It's important for customers to note that the new Dynam V2 retracts have the same 10-12 second delay as the V1 retracts. Although the internal mechanism has been upgraded and improved, the delay is the same. Once you plug in your retracts, wait 10-12 seconds and then you should hear a "click". Once you hear the click the retracts are ready for cycling and should work perfectly.
This delay appears to apply to digital radios only. Using a non-computer radio (like the Gavin 6A as example) causes no delay with the V2 retracts.
We recommend that you test your Dynam V2 retracts with a receiver and not a servo tester.
Here's a quick video showing the retracts and delay.