Thanks all, it's a bit complicated getting your head wrapped around all the options for various torch sizes as well.

Anything to chose between the Edge or Furick Pyrex/Gas lens set ups? Cost, durability, performance?

Stainless, Titanium and CrMo... I see these beautiful welds and know the Stainless should look like chrome, the Ti, goldish to silver. What is going on with the various colors? Poor gas coverage, overheating? Trying to learn more. Thanks in advance