Does anyone have any use of these on Expys? Likes/dislikes? I did a search and didn't find a whole lot. I've read a bit on the Viper and see a lot of bad reviews about it not working. Drone seems to be the same thing just 2X the price.

 

I know i am bringing this back from the dead but smartstart is BADASS. and now with the DSMC250 its even better. If you were looing into it look into it again its totally worth it.