Allen created custom end panels / wood sides for my Korg Poly-61M. I was in the process of restoring mine to resell it – as much as I love it, I'm downsizing. So after doing the Tubbutec mods, replacing the battery, and cleaning it up a bit, the last bit was the problem: the already crappy particle-board end panels were falling apart. Lots of people just slap brown wood sides on a synth that were never meant to have them. After discussing it with Allen, he devised a plan to create a gray wash to capture the original aesthetic of the Poly-61M but add the classiness of the wood.
Since he usually does this work on-site, he offered to send me the end panels and then walked me through the installation in detail which felt like someone telling me not to clip the blue wire or the whole bus would explode. But he stayed on the phone with me for an hour, preventing me from making mistakes (e.g., DO NOT USE A POWER SCREWDRIVER!) and nudging me to just push a little harder to get the existing end caps off.
A lot of people gripe about his turnaround time but i can vouch that it was worth the wait to get exactly what I wanted for restoring this synthesizer.