Brad
Let me be the first to say these things can be somewhat confusing
when it comes to tone, some here have totally different opinions!!..The fact I am trying to point out here is this ..When you up the value of either the Drive or level pots lowers the -3db knee (very similar to raising a cap value) of the OD circuit
In this case (quoted by your boy Scott Lerner)
Tony, in my experience, the two main differences of the 250k pot is the increased miller effect causing loss of high end and the increase in bass as the rc network created by the .01 and the pot allow more bass.
By adding more bass to the OD tone you get the low end fart/flutter more prominent (especially on the E A D wound strings) naturally!!..This kind of break up when not controlled properly (like you point out in Matts vid) can be somewhat farty, buzzy or sometimes called toothey (or as Maria puts it harsh

), as well as sometimes obnoxious IMO.. I hear this in just about all the 183 clips (on the lower note/notes) to some extent..Of coarse this might very somewhat due to the player,speakers,guitar etc...
Btw..In the thread Scott mentions this..
Use 100K drive pot. Not 250K.
Use standard 220K into 100K OD entrance.
She'll be smooth as silk....
This is before 183 was reviled and no one knew HAD used them in his ODS's.. I was pushing (expiermenting)with the 250K pots way before 183 was uncovered..You can find this thread here
https://tubeamparchive.com/viewtopic.ph ... 250k+drive
Nobody really paid too much attention to my opinion until they found out 183 had both 250k in drive and level pots..Then everyone fell in love with 183
Nothing wrong with 183..Some people just don't like the character of the OD tone,perhaps caused by the lower knee the pots (load) provides!
Have A Wonderful night!!
Tony