I'm using this track the differences between the nades create via CSU_ThrowGrenade and real grenades:

1. Smoke grenade popping sound is different: right now it's being played via plugin, we may be able to find a way to get the sound to happen organically
2. Similarly, the smoke grenade cloud effect for clients is based on a possibly incorrect timing
3. The true range of angular velocity values (at least the first entry) isn't known: for now -1000 to 1000 is used
4. Collision behavior with other csutils-thrown smokes is different (csutils Smokes can collide with other smokes. #69): breaks criss-cross mid smokes on cache, for example.
5. No messages in chat about the grenade being thrown.
6. Flash/smoke/decoys don't do damage on impact. That's because csutils purposefully reset the nade's thrower on impact to avoid crashing. Maybe there's another netprop that needs to be set?
7. Red player names show up through csutils smokes as if the smoke wasn't there at all (with real smokes, they can kinda show up sometimes, but it's rare-ish)
8. The fake smokes don't put out mollies (When .throw <smoke> is used and mollies are thrown into it, they burn. #127)

I'll cross out / add new issues as they're fixed/discovered.