Manually shifting an automatic. Good, or bad?

[jtdesigns]

Just like the title says...

 

 

What about down shifting?? :driving:

[fatcat0491]

Um I had that set up in a xj Turned off the TCU (transmission control switch)

Then it acted just like a manual Sucks stalling it in drive (4TH) I didnt have any problems but i only did it while offroading for More control

[TNT]

I have a switch to control if it stays in first or second and use the manual shifter for the other gears. I can also control torque converter lock-up with a switch.

 

I shift manually on the street or trails and it works great.