Lock up on 2-3 shift?

Thanks for any input guys.
If not.... I have a manual lockup switch should i lock it up and then unlock for 2-3 then lock it back ?
You can turn the lockup off and on between shifts but the real question is why would you want to lock like that, The car unless the stall was badly chosen will be much faster unlocked. Thats what gives the auto the advanatage over the manual trans the torque multiplication of the converter.
Anyway you look at it though its dangerous to lock anyhwere near a shift with a switch since if you miss it could spell disaster-Trans/converter/drive shaft/rear end.







