Hey guys. So I'm looking to buy an authentic Evic mini 75W and a Billow V2 from Fasttech. Their prices are insane and I'm concerned that they aren't legit. Pls let me know your thoughts / experiences with them. Also, I'm somewhat new to RTAS as I've been using an I JUST 2 which is awesome, but I'm not keen on buying coils evry few weeks. Do you think the equipment I mentioned is safe to start with?