If you use performance legato patches no Release Samples are triggered if you stay within the legato trashhold.
(The Release of the previous note is already included in the start of the following legato note).
Only endnotes of a legato phrase will trigger a Release samples.
So the perf-legato stuff is automatically very economic.
On the other hand, if you use normal sustains for fast legato or repetition phrases, maybe even in polyphic mode,
you will get an Release Sample overflow very fast.
Especially with instruments which have long Release Times (for example double basses).
All the triggered release samples will ring during their very end.
If the release samples are for example 2 seconds long, and you are triggering 10 different notes in two seconds, there will ring ten different release samples at once.
If velocity crossfade is active, and the patch uses four velocities, there will ring 40 voices of releae samples even with a monophonic line!
best
Herb