Not compared to my setup LOL
I got a kick out of these two endings to your big posts! As a fellow over-the-top RODI guy (150 and 80 micron mesh pre-filters, 20 micron prefilter, followed by sediment and carbon block sets of 5 micron, 1 micron and 0.5 micron, 2 75GPD RO membranes, and triple stage resin stages) I enjoy these types of posts!
I have about 300-350 TDS going into my RODI setup and my only suggestion would be to definitely keep the triple stage resin setup with a single cation stage, single anion stage and then mixed resin stage. This will save you money in the long run as typically one resin gets used up faster than the others.
I apologize if you mentioned this already but I would suggest running two RO membranes in series (check BRS' water saver upgrade kit) to increase production. With my setup I am getting 0-3 TDS after my double RO stages. I am going to be adding a 150 GPD Smart Buddie soon (when I have some free time) and also setting up an automated TDS creep flush that will run for 1-2 minutes after the Smart Buddie runs it's flushes to get even more efficiency with the resin stages.
