I recently purchased a Helios clone for great price (I know it's considered an old rda, yet it is serving me well) My only gripe (if I could even consider it 1, would be it's shallow juice channels. I am modder and would very much like to enlarge the juice channels a bit directly under the center where I mount my coil. I do not have access to drill press, yet I do have access to a variable speed drill and 20,000 rpm dremel with a multitude of bits/attachments. I have a feeling this subject may have been inquired about before but would like some fresh advice on this topic. Any constructive advice short of (buy another RDA would be greatly appreciated) Thanks in advance good peoples of ECF 
