In the other method, I have a small tank just big enough to hold an SS tank. I have a temp control unit on my sink and set it to 100F and let a trickle of water run through it. It then fills my sink and the developer and tank are held at 100F.
In the third method, I just set my Jobo at 38.6 deg C and leave it and the chemistry for about 1 - 2 hours and come back. It is ready to go.