Hi everyone, today I decided to maintain my mechs, and also did some builds with RDA's I haven't used in a while specifically for me mechs. I went for a SS SMPL clone first, with a mutation x V4S on top. I built to around 0.2, simple dual coils as I find they ramp up faster and give a nicer vape. The thing is, the mod feels rather warm- this is mainly at the RDA end so I wouldn't worry, but have noticed the button getting hot sometimes. I am using Sony VTC5A's due to the resistance, and extra headroom compared to HE4's and 25R's. I just wanted some clarification that this is normal before I continue to use it, I haven't used my mechs properly in around a year so have forgotten the quirks of each mod. This one is a good quality clone and was used a lot in the past. Any advice would be much appreciated.