quantizing intelligently

i understand from the wiki that heuristic notation quantization is for adjusting
"note start times and durations so as to produce readable notation"

the segment on
Notation from performance data
gives some tips on how to use it, even saying
"Rosegarden includes a quantizer designed to do a slightly better job of this than the plain grid quantizer."

however, i haven't had much luck so far - there is always an excess of rests.

possibly i'm doing things wrong.

if i use grid quantization though, i tend to have better results.

anyone here use an effective system for quantization?
or do most people just use step recording to produce notation?

-- 
In friendship,
prad