Further thoughts about the Metter supercharger....
Despite the sign that says "Everything is Better in Metter," this is a _really_ complicated layout. The supercharger stalls are divided into 2 groups, and you cannot get from one group to the other without going back out onto a busy 5-lane GA Hwy 23. The main entrance to Parkers Fuel Center has access to only 3 of the first 6 stalls and none of the western most 2. If you count the stalls (all unlabelled) from 1 to 8 starting from the Parker store wall, the southern or main store parking lot is labelled for the use of stalls 3, 4 and 5. It appears Stall 3 can be accessed from both parking lots (not at the same time obviously). Stall 4 would be blocked by a car parking nose first into the Stall 6 charger (on the back corner of the Dumpster wall) and Stall 5 is only accessible from the main store lot.
So it would appear to be better to take the northern entrance towards the back of the store, into the small, Tesla-only lot. The first stall you come to is number 8, a nose in. It was filled almost all of the time I was there. The second stall (7) is a back in. 7 and 8 backup to the Chargepoint Chademo/etc and J-1772 chargers in the main lot. I had my Chademo adapter with me, but the estimated GA Power price for a charge was $30, so I did not test it.
I don't think the nose in stalls in this lot are suitable for an attached trailer because you would almost certainly have to back the trailer out into traffic to get out and you run the risk blocking access to most of the other supercharger slots if your trailer is too wide.
We were testing using with my wife's dual motor long range Model 3. Wifely patience being what it is, I was only able to test Stalls 1, 2, 3, and 5. They ranged from 70 kW to 178kW (Stall 2), with two around 120. All stalls showed an estimated time of 25 minutes to charge from 43 miles of range to 90%. Needless to say I settled on Stall 2 and we finished on time with a range of 279 miles, exactly 90% of 310. The total cost was $4.42.
Now I am wondering whether the reason that Stall 8 was nearly always was in use was because it was the most convenient or the fastest. I hope others will post numbers for the other stalls using Model 3s. The number to beat is Stall 2 at 178kW.
scoots