Power 5x is okay, but if you look at the recent experimentation done by SHL from another forum, Power 5x is filled with all kinds of residuals. ...
,02,residual left on Power 5x. If I remember correctly.
I keep preaching Lucienne.
Lucienne is the only canned Butane that carries the "Near Zero Impurities" label, that can still be purchased for less than 4$ per can, cases are around 40, I've found a few kinks for Master Cases for about 200$.
My advice is to get with a Lucienne rep, and work out a contract.
Here's what not to do..
I used to be able to walk Into my local Smoke shop and get Lucienne for 3$ and some change. But now, that Butane sales have exploded (pun not intended) All the shops have raised the price to 6.99$ per can.
So I buy mine on line now.
Hope this helps...
Fasfil is okay too, but Lucienne is bit better IMO
Fasfil does not carry the Zero Impurities label,
I just had this decision to make a few weeks back,
Case of Lucienne vs Fasfil
The price was virtually the same...
Maybe carry both brands? Or even start out with several varieties and base your decision off of past sales.
Hope this helps.
Ps
Google " Best butane list from first to last"
SHL compiled a fantastic list of Butane brands and their residual contents.