Jerry,
Please, forgive me if our comments here were not directed to you first. It is not dissatisfaction with your product, but a point of being completely alone in understanding the engine. I don't know if I have the BEST one you ever built, or the worst. I have never seen another one so I have no basis of comparison.
I know I can call you if I get stuck with a problem. But, I am not sure what constitutes a problem. (I don't wanna be a PEST, either!)
I do know that I am
quite pleased with it.

The "gee wizz" factor that Live Diesel actually works is one thing. Learning what it is capable of, is another. I have proudly

shown it off a couple of times and expect to do so many times in the future. I am, at present, uneducated as to its capabilities and eagerly anticipate some experiments to find out, but I won't be able to conduct them until the outdoor temperature has gone up at least 70 degrees (and been in that general vicinity long enough to melt a couple of feet of ice and snow off the tracks!) At my usual Sunday run time today, it was MINUS 2 degrees (F.) outside... I suppose it is possible that your Live Diesel might run at that temp but "I" DON'T /DesktopModules/NTForums/themes/mls/emoticons/sick.gif and have no intention to find out! (Okay, Steam has a higher appeal to me so I tried my Aster Mike at 0 deg. a couple of years ago --- uh, NO, it didn't work well enough to attempt it ever again.)
I am still in, what I figure will be, a somewhat long learningg curve with the Live Diesel, not because your product is difficult, but because I am. /DesktopModules/NTForums/themes/mls/emoticons/hehe.gif I know a lot about Live Steam from book learning of full size practice, and hands-on of miniature stationary engines and 2 Large Scale Aster Mikes. I have "some" book learnin' about infernal combustion engines (and I "can" change the oil in my car!), but I know very little about miniature Diesels, (other than some short stints with some toy airplanes, where all I learned was leveling off at 3-ft underground is a bad idea!/DesktopModules/NTForums/themes/mls/emoticons/sick.gif)
I come here to either commiserate with and/or brag to others who own Live Diesels from you and similar products from others.
I would like to know more about the design decisions you made and what ALL the parts inside do (and why), but I don't know enough at present to form a cogent question for you. I know that e-mail and forum "discussions" are slow and cumbersome, but my verbal babbling trying to ask a question over the phone could certainly be even slower and more frustrating for both me and you.
I do have one subject I think you can address here. What time of day and day of the week would be conducive to a civil /DesktopModules/NTForums/themes/mls/emoticons/blink.gif discussion with you? Like I said above, I don't want to be a pest, and I figure 3AM /DesktopModules/NTForums/themes/mls/emoticons/pinch.gif your time would be a poor choice for a quick question about anything at all.