By the way, the concept of a Mash Out is really raising the temp of the grainbed to 168*F (+/-) as a step (be it infusion, temp, decoction).
Consider the difference between the 2 Mash Profiles: "Single Infusion, Full Body" (SIFB)& "Single Infusion, Full Body, No Mash Out" (SIFBNMO)
I would "argue" that the 1st option (SIFB) is really not a single infusion. The 1st step (Mash In) would be, but (somehow - select your preferred method here) you still need to raise the temp of the grain/mash to 168*F. If I had to guess, (and this is how I did it for quite a while), I'd say that most folks who want to get up to 168*F are doing a 2nd infusion of hot water - just like the SIFB profile (Mash Out) - Add xx Gallons of water at 2xx F. Ok ok ok... I know, perhaps I've gone overboard
The SIFBNMO option just lets you begin sparging after performing a single infusion of mash water.
I hope that helps - when I moved from Batch to All-Grain, there was a LOT to learn about the mash (and still remains much for me to learn!). It took a while for the definitions of the words to actually sink in
Jim