I can't solve your situation/problem better than DG tried to do it. So the instruments react as the do.
If you want to get a "sample result" as close as possible to the reality you should change the
articulations very often. So why not - as DG recommended - changing from legato to sustained
for the final long note? If necessary: Take the legato for crossing the note but fade then with
the X-fade function from the legato- to the sustain- articulation for the final length.
When string players play very long tones they often have the problem of a "too short bow".
The results are therefore quite often diminuendos instead of sustained notes.Try it out.
The VSL-diminuendos are very nice because most of them are starting with a sort of "belly".
The work with samples is a "continuous being ready to compromise". If something doesn't work
try with all your possibilities until you get the result (or as close as) you want to reach.
This takes a lot of time and - of course - you should know your sample library and its possibilities
very well. As an example for this:
http://www.beat-kaufmann.com/vitutorials/vitipstricks2/index.php#0439199ae0080e004
BTW: It isn't a good idea to switch of the release sample. Most of the articulations will stop
the very unnatural - such as legato, sustain, ...
Have a nice sunday
Beat
- Tips & Tricks while using Samples of VSL.. see at: https://www.beat-kaufmann.com/vitutorials/ - Tutorial "Mixing an Orchestra": https://www.beat-kaufmann.com/mixing-an-orchestra/