look a little closer my man.
you still need a cap with an enail to dab at low temps...if you haven't dabbed at low temps, you are missing out.
i got a D-nail silicon carbide head with a v1.3 base and a flat coil heater on my custom curve capper unit:
http://dj-hash.com/xavier/tnt2.JPG
16mm or 20mm seem to work fine. it just depends on what diameter heater your enail needs.
I took a quick look and I wouldn't dream of getting one of those models with the wrap around coil heater. That is a burn waiting to happen. And, it's right where I grab to lift my bong bowl. LOL No way.
what are the benefits of silicon carbide over titanium?