hey ladies and gents. I've been vamping for a little while and i think its time to dabble into the RDA world. don't want to spend a whole lot cause i know its not for everyone. I've been looking at the IGO L and the IGO W. i know that the L is a single coil and the W is the double. should i get the W and start off making single coils on it till I'm ready to make double coils or should i get the L and when I'm ready for double coils buy the W?is there any downside using the W as a single coil RDA?i have a feeling after using a single coil for a few days ill want to step up to a double coil.