[Jim2]

It appears this works because the wastegate regulates the boost relative to the signal it receives.

I did this, only to lower my bottom boost threshold by taking the wastegate signal prior to the intercooler (like yours is currently set up).

I was seeing just under 2 psi boost differential by taking the wastegate signal prior to the intercooler versus after the intercooler. This differential correlates to the restriction which I measured across my intercooler at about 1.5 psi. So, the answer is yes, assuming you have a little restriction within your intercooler (most all do) you could increase your boost threashold by taking the signal after the intercooler.

eidt: signal taken after the intercooler, but before the throttlebody. I'm not sure of the effects of linking directly to intake manifold such that the wastegate sees vacuum iduring off-throttle. Diaphram in wastegate might not like this.