Sorry for the double post, but probably this is the best section to post it:
Don't you think that it should be interesting to add a possible "No Raft" Command in the print menu.
This will save many many material and since your plate is well calibrated, removing the small pins by simple sanding shall be OK.
Just add also in such case the possibility to add more layer on the bottom.
This will be helpfull, and really material saving !