Parallel Source V and Measure I using Keithley 2602B&2612B

Hi!

I am currently doing a project to source 3.3V and measure current to and from my 4 DUTs in parallel.

I have connected my 2602B, FW 3.4.2 (Master) and my 2612B, FW 4.0.3 (Slave) using TSP-Link feature.

Using TSP, I am able to control the 2 nodes using the master instrument. However, when I try to get the test time, it looks like the current measurement is being done serially. Is there any way that I could improve on my TSP codes to make this parallel? 

Parallel Measuring:
4 sites = 0.28 s
2 sites = 0.14 s
1 site = 0.07s

I have attached my TSP Script on this thread.

Thank you!