TS Performance Torque Converter Lock-UP

[PsRumors]

Any one use the TS Performance Torque Converter Lock-UP unit? I do know the same basic thing can be done using a switch but I want something that is automatic, set it and forget kind of thing.

In reading the archives I know not to lock up the converter in 1st but beyond that what can the converter & trans stand up to?

Can the converter be lock right after shifting into second?
Can you keep the converter locked between shifts?
Will the trans stand up to it?

TIA

[1978psd]

I used my own switch, you can lock it when your moving it can be in 1st gear. It just doesnt allow the TC to dis-engage in order to shift so itll make the shift really hard so I dont do it untill im in 2nd or 3rd and need to pick up speed pulling something.