I've been using SD3 for several months now. One of the things I miss is to be able to print dense first support layer (on the build plate) when printing without raft. This would increase the adhesion of the first support layer immensly. If you could add this and also allow the skirt / brim to be printed for the first support layer as well, this would make a huge difference when printing without a raft.
Please consider to do so - this should be very easy to implement.
Cheers and look forward to comment on this.