A 2 stage BnA Tacsport works perfect in my Archimedes. It's never failed to set or let the firing pin fall on closing the bolt handle even when running it fast with an empty chamber for testing. I'm using the low sear (per my measurements and also ARC's chart) and it's set for about 0.005" decocking on close. Not sure what height sear the CDG will need, I'm sure ARC will post a chart at some point.
I have my BnA set at 2# total (1# 1st stage, 2# 2nd stage.) Keep in mind the BnA Tacsport isn't a true 2 stage with extra sear engagement that is reduced to minimum in the first stage travel, rather the pseudo-first stage in the Tacsport is just an adjustable pull weight and pull length spring loaded rotation of the trigger shoe lever until the rear of the trigger shoe lever contacts the lower sear bar. The actual lower sear engagement remains constant when taking up the pseudo-first stage. The actual trigger pull weight that actuates the lower sear is 1# in my setup, and like I said I've had zero issues with my Archimedes. The CDG with the pivoting bolt handle should behave similarly.
Now if you try and go 12-16 oz total (say 6-8 oz first stage, 6-8 oz second stage) I can't say how that will play with the pivoting bolt handle.
The main reason the pivoting bolt handle is more trigger sensitive than the fixed/camming bolt handle is that if you have the trigger set for zero cock on close to some cocking on close the cocking piece will impact the trigger top sear at full bolt closing speed when closing the bolt and that "hit" can upset a sensitive trigger. With the fixed/camming handle, the first thing that impacts when closing the bolt is the extraction camming surface on the fixed handle contacting the camming surface on the receiver, and those camming surfaces will take the initial "hit" of the bolt closing and slow the bolt velocity down before the cocking piece hits the sear and you rotate the bolt handle closed.
Part of the reason I have my Archimedes set for -0.005" decocking on close is so the cocking piece won't hit the sear when running the bolt until the bolt is fully forward in battery and you start to rotate the bolt handle down, and the bolt rotation lets the cocking ramps on the back of the bolt body slowly let the cocking piece down to the sear. I figured this would be easier on the trigger in the long run. The -0.005 decocking causes a nearly imperceptible bump in the bolt handle feel right as you start to rotate the bolt handle closed as the firing pin spring working against the cocking ramps helps to close the bolt handle just slightly; you have to be running the bolt really slowly on the bench and try to feel for it. When you're running the bolt normally and chambering a round you don't even notice it, running the bolt is extremely smooth.
. 
