A few months ago I purchased the SlowNSear Plus which has the Stainless Steel Base Plate at the bottom and their DripNGriddle. I do a lot of Grilling with Lump Charcoal in which this bottom Base Plate really helps with many smaller pieces of lump charcoal not falling through.
I also purchased their Grill Brush and Scraping tool and I continue to be one-happy SlowNSear Customer.