I wanted to share a little feedback I recently received of the Leadmaster Fuzz from a guitarist name Peter in Vienna, Austria:

"Hi, FYI your pedal arrived today. Great tone, nails exactly and instantly the sounds from the heroes of my youth. 
I have had to search Slade songs to play along with, as I found exactly their tone at a first checkout. Your pedal does a better job than my boutique shatterbox replica in nailing my favorite Bolan sound of the T.REX (the brown) album, for example "Is it love". The brittling of the transistor is exceptionally good!  The pedal nails exactly THAT tone/sound!
Hope to hear and see more gear from you, greetings from good old Europe.
Peter"

Its no secret, vintage components in most cases just sound better especially when you are trying to achieve that 70's rock sound. 

Not every company is meticulous about the type of components they are using in their pedal and the ones who are trying to recreate authentic replicas of vintage pedals like the Shatterbox ends up costing two to three times as much as the Leadmaster and a lot less versatile and dynamic tonally. 

Thank you for the kind words Peter! Cheers!