US cartool subframe connectors vs. mopar?

I am in the process of welding the US Cartool connectors on my 68 Valiant; I believe they are 11 gage (approx. 1/8 "), plenty beefy.
I like the way they give you a boxed frame rail to the floor pan; this should in theory prevent the body from twisting in the center to rear floor area.
Just be careful with welding amperage on the connector to floor pan ; floor pan is pretty thin compared to the connector...