I have done the same mods with my Scorpion II. The Langley upgrades (both mic and line modules) are EXCELLENT. They transform the channel almost entirely and turn this console into a legitimate mixing and recording desk. My console was very well taken care of before I purchased it, and even a re-cap with the help of AudioMaintenence gave it new life (I re-capped the channel sections, return modules, power supply, and master section). During the re-cap I also switched out the opamps in the EQ section and also all the opamps in the master section through recommendations of Jim Williams on the Amek forums on analogconsole.com (A great resource for console-specific questions). This alone brought new life to the console and increased the depth/stereo image perception and clarity as the largest benefit. A VERY noticeable improvement. After the integration of the Langley Mic and Line input modules this desk is literally a tool that, when used in the right hands, can indeed and literally rival the quality of mixes you might get out of an SSL or, dare I say NEVE desk *GASP*, (I mixed and recorded on a Neve desk loaded with 1073 modules for two years fyi). The preamps now sound fantastic (headroom increased as well as the preamps now not sounding...oh....I dunno...."flat" anymore), and the EQ now has great definition/clarity/punch (especially in the lows and mids-the upper frequencies of the EQ were least affected). For $2K or less for a well-taken care of console, $50 per Langley input module, $300 in additional caps/opamps, and 35 minutes per channel of soldering time; I now have a monster of a console for far less than the "big brand" desks that 99% of the engineers/producers out there could never afford, or will probably never even get to work with.

I would be interested to hear what the addition of the transformers on the output section sound like. And if you haven't changed the opamps or re-capped your master section; I would highly recommend at least doing that to improve your results even more. No matter how much you improve each of your channel sections with upgrades, if you haven't re-capped (and changed opamps too - highly recommend) in your master section, you won't be able to reap the full rewards of those upgrades entirely until you do.