Dyno-My-Rhodes: What's the deal?

Once upon a time there was a guy named Chuck Monte who made custom modifications to Rhodes pianos, under the guise of a company called Dyno-My-Piano. The most notable fruit of his labor was that the Rhodes sound was made to be much brighter and more bell-like, a sound that characterized many Rhodes recordings of the early 1980's.
 
Chuck tells the Dyno-story:
Dyno, (started in 1974), customized Rhodes, Wurlitzer, Hohner and Yamaha electronic pianos with highly sophisticated mechanical and electronic (analog, not digital) modifications. The "Dyno Rhodes" sound still lives in the digital domain and is used in recordings even today (... and so are the Dyno Rhodes pianos for that matter!).
In 1980 or so we redesigned the electronics we were building into the Rhodes, and packaged them in several ultra high quality rack mount units for studio and live performance applications. As a keyboard player, my product's focused on expressiveness and sonic quality first, not cost.
Dyno ceased production of products in the mid '80s when digital products took hold on the market, and was rolled into my joint venture with Baldwin Piano and Organ called Keyboard Technologies, Inc. which produced the first (and only) adjustable percussive action MIDI keyboard controller called the GZ 1000.
From there I moved into computer music, and teamed up with The Software Toolworks in 1989 to launch a dream I had for almost a decade, the Miracle Piano Teaching System. The Miracle sold over 255,000 units, and was later upgraded in 1994 by my first Silicon Valley startup called Creative Insights, Inc. (funded by Creative Labs) Called the Piano Discovery System, it's still being sold today by Jump Music, after the startup failed due to funding problems.
Beyond that, it's a story that I suppose is continuing to unfold even now.
 
So you're probably wondering, just what exactly did Dyno-My-Piano do to the Rhodes to make it sound so spectacular? Tim Curtis found the following ad in an issue of Keyboard from 1981:
The Studio Model 4000 is a Rhodes piano that has been modified extensively by Dyno-My-Piano. It has been designed to eliminate the problems that may crop up in using the Rhodes piano in recording and performance situations. The piano includes an interface for connecting to a synthesizer, and onboard capability for running effects loops through the piano. Other features include an patented stereo equalizer, fine-tuned action and tone adjustments, inboard stereo chorus, inboard overdrive circuitry, stereo modulation and keyboard split, tone modulation circuitry which splits the EQ filters into two groups (panning between the two groups to give a wah-wah effect), a musical instrument input switcher that assigns the left and right location of inboard effects to interfaced keyboards, and an AC power distribution system module that remotes the power supply (it also supplies six extra outputs and will put out 110 volts, 240 volts, and 230 volts). Dyno-My-Piano, 2940 Folsom St., San Francisco, CA 94110.
 
Back in the Dyno-days, Chuck Monte would tour the country, Dyno-ing electric pianos for people and training others to do the mods. Edward Ringue, an original Dyno-customer, describes his experience with Chuck:
When I had my Rhodes Stage piano get the "Full Monte" he had this cool clear acrylic(?) cover that replaced the soft plastic one. I tried to get him to sell it to me but he said it was too fragile for normal use. I also remember that the custom preamp also had an OVERTONE setting that could increase and decrease the amount of harmonics added to the sound. Plus the bass boost gave my Rhodes much needed "Ooomph!" I remember back in 79-80, I had him put in the pre-amp, the Dyno pedal and he took my satellite speakers and put in new JBL speakers and a Herald horn along with an amp mod along with a Fender Princeton that he (and then I) used as a preamp. The whole thing cost me $2500.00.
 
Here's a list of known Dyno mods:
· "An EQ which boosted the high end" (John Koumoutseas)
· "Tri-chorus effect which was and still is very popular in Nashville for Tele players" (Tom Skidmore)
· "Custom pre-amp for Stage pianos" (Derek Tarr)
· "Added weights to the keys (near pedestal) to make it feel more like a piano" (Derek Tarr)
· "Changing the pre-amplifier electronics to alter/customize the sound of the Suitcase piano" (Derek Tarr)
· "Put in signal processor effects 'in-line' before the pre-amp out" (Derek Tarr)
· "Custom speaker cones (like adding tweeters and crossovers)" (Derek Tarr)
· "The most famous feature was the Dyno-my-pedal, which could move the harp and change the sound..." (Andreas Arnstrom)
· "With the new pedal construction you could move the whole string-harp back and forth while playing, to change the timbre and color" (Frederik Adlers)
· "The most obvious change he did...was cutting the lid so you easier could stack other keyboards on top of your Rhodes" (Frederik Adlers)
· "The hammer-tip modification" (Skylark).