I successfully got start and end caps to work for a separate modeling procedural object that I was working on. I posted a video explaining how I got them working and looking really nice. Not that I understand everything about the process but when you have them working they are extremely powerful additions @biohazard2015 and can make your models really pop and not look like standard array’d objects. There are lots of options for what you want to use for start and end caps and I chose the option of continuing unique but similar geometry.
I talk about it here on my project I have been working on for the live collaboration:
https://blog.cgcookie.com/forums/topic/wouldnt-you-say-that-crease-may-have-porting-issues-to-other-tools/ there is a YouTube video called Array and Curve Modifier Magic that I put together that goes right along with this lecture from @chunck
