Thanks Kris - yes, ttloaly confusing but makes perfect sense. I am SO ready to send Brad to a neuropsych but you really can’t until they’re a little older. I look forward to having more data - processing speed, sensory, etc - to figure out what’s going on in there. Nyx - exactly, most of the test is administered using these cards which he struggles to discern or discriminate. So in some respects, I feel like his score is artificially low. But anecdotally his speech seems to be on a par with my neighbor’s child, who happens to be two years and 9 months -ish. So it’s not just the pictures or the visually processing. And yes, processing speed seems to be part of it. Speak quick and he’s ttloaly lost. 
It will be great to have this to look back on in time. Reading this ieniprsd me to keep better track of specific conversation records with our girl. I know her language has progressed, but I forget sometimes how it was a while back. So interesting also what called his attention and what he found to be overwhelming (or uninteresting). Leave it to our kids to tune in to things the rest of us miss and to find less intriguing the things we focus on. “Marching to the beat of his own drum” - this is the one we always come back to as well.