ORIGINAL: DarZeelon
If it is worth anything, I would like to add another issue....
Even though ST engines, like most other makes, use CNC made parts and are manufactured by low pay worker, in far east China, they still have some of the original Super Tigre spirit left in them.
The design is still original Super Tigre; not a clone engine, like TT, Sanye (Magnum, ASP, SC...), TS, Tower/GMS...
...And they still have their own idiosyncratic behavior, like any real Italian item (car, motorcycle,...).
I don't look away from such things, like some modern day R/Cers, that need everything ready-to-run, right out of the box. They actually attract me to 'fiddle' with them...
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I couldn't agree with you more, Dar.
With more control options (adjustable midrange) comes more possibilities of improper adjustment, in addition to the possibility of better optimal performance. Some of the folks in the hobby find this to be a challenge, while others find it to be a liability. For the latter folks, keep the fuel down to around 5% nitro and leave the "midrange adjustment" alone on the ST engines.