Made it back from AZ Friday. Mercifully, ground temps only got to about 90 degrees this year. The highest oil temp I saw was 192 with an OAT of 74 at 7500'. My MP was 19.7 inches and I was near gross. My cowl flap was closed.
I would rate my baffle/caulking job as average for RV's. I believe my oil cooler is a 7 row Positech. Not sure how this compares to other 6A's with 0320 engines with oil coolers at the air inlet. I've never flown my plane without the air scoop for the oil cooler, so don't know whether it really helps or not, but after tightening up your baffles if you still have high OT's, it might be worth a try.
I also got a good test of my new Anti-splat cowl flap on this trip. If I opened it in cruise it seemed to drop my CHT's by about 3-5 degrees. For me that's well worth the time and cost. I only saw 400+ degrees once during my trip, and was able to get the CHT's down easily with the cowl flap opened by dropping the nose slightly and enriching the mixture a little.