Do you own a Roland TR-909 drum machine? Would you like to do me (and a bunch of my friends) a huge favor and record a comprehensive set of snare samples with varying dynamics?
The issue with existing sample libraries is that they all dismiss the most important feature of the snare drum: The dynamics. The 909 snare has a very distinct velocity curve and variation in its attack. Unfortunately in every library i've come across there simply isn't enough velocity iterations of the samples. To build an authentic 1999 trance roll i would need at least 16 samples with different velocities to avoid the machine gun -effect, preferably more. If I got to choose I'd probably record like 32 or 64 shots per snare setting with increasing velocity, and apply this to a few different snare settings.
If you're not sure what I mean, perhaps listening to these songs help you to understand:
https://youtu.be/sNM6sgyiqKI?t=41s
https://youtu.be/1kn7yCNxeq4?t=4m17s
https://youtu.be/zXsqo_pNGDg?t=3m46s
As you can hear the velocity curve sounds stepped especially in the more quiet parts. Also the snare is very lively even when repeated. Achieving this is hard with only one or too few digital samples.