bossisly As I recall I found V1.18 and up most stable. I'm using V1.20 now with Back ice mod V10
I have not had any problems, crashes yet using it. The performance and graphics improvements
are listed on the Black ice thread. I have win7, AMD quad @3.2 ghz & GTX260. I get a steady +70fps.
You should know how/what changes maybe necessary in your setup.ini.
I am most happy with it's stability & performance. Better light mapping and build times.
Quote: "dynamic entities falling to the floor of the scene"
Sounds like they are not set to "is immobile" in the properties setting.
Quote: "spawn delay being made unusable"
It's use mostly if you intend to have the same entity spawned again
after the first has been destroyed (as in a character ) or an entity has been picked up by player.
Read thru the FPSC manual, it give clear instructions on how to use. A little tricky but does work

My games never have bugs. They just develop random features..
Lots and lots of random features...