Question about High Idle mod.

[FastStrat]

I used switches 3 and 4 and hooked-up both the PTO and the BCP (easiest mod ever)

The PTO locks up the torque converter, is this hard on the tranny?

When cooling the truck down by letting it run (after hard usage),
is it better to use the high idle or does it cool down better at normal idle?

Thanks

[mor4wd]

Normal idle. My EGT sits at 260ish at normal idle and around 290 with idle at 1200.

As far as the torque convert lockup, the only way you can do any real damage is by keeping the TC locked when it's shifting. You'd need billet input and intermediate shafts to prevent damage.