If I read that right I think that's the opposite of what I've found with the many ST I own.

To get the transitions good, I find you must lean out the HS to get best power, back off 200 RPM, then set the low end VERY rich to get the transitions richer than one might expect, enough so the engine does not cut off when it goes nose up during a transition.

That creates a low idle problem as it is then so rich the engine cuts out at idle, which I solved with the fix above.

Once done the engine is as smooth as silk at all speeds and never ever cuts out.

To rephrase, prior to the fix, to get a good transition I had to set the idle so rich the engine either bogged down, or would only idle at a fast speed....

OR

If I set the LS to get a good idle, I would get a bad transition with a tendancy to cut out when nose up and throttling up/down. Ugh.


But not all of my ST's have required this fix... about 60% seem to work just fine with standard tuning techniques.

Never the less the ST's are very reliable once you get past their tuning quirks.