OBD2 Splitter

I have seen a couple videos on this with conflicting results; I could have revived an old thread or posted a new one.
My Plan and Question: I have a Scanguage I am currently running in OBD2-and would like to continue to use-I am getting a Shift Sense Pro and would like to use them simultaneously; has anyone had success using a OBD2 splitter with these two items or similar items?

 

I have a splitter on mine with a PedalMonster on one connector and a Bluedriver code scanner on the other. The Bluedriver app allows for monitoring real-time data. When using both, the Bluedriver app would show occasional drop outs of the parameters I was monitoring (coolant temp, etc.). The PedalMonster worked fine.

When I put the PedalMonster in 'non-OBD' mode such that it was no longer reading vehicle speed and only using the OBD port for power, the data dropouts on the Bluedriver app went away.

Since the OBD port was never designed to have two devices polling for data, don't be surprised if the two devices step on each other.

I didn't have any drivability issues, check engine lights, etc.

 

Scangauage says it is not possible.
Banks uses their own system that “splits” OBDII with their Pedal Monster and their iDash gauges and it works flawlessly.

 

For Those who are wondering the same thing:
I purchase the BBFly Pro OBDII Splitter and I am running the Shift Sense Pro in conjunction with a Scan Gauge II.
I only just installed and did a short trip to shift through all the gears, functionally both units appear to be working correctly.
My best guess as to why both these units work correctly together is that they are both READ only-No Write.
I will update once I put more miles on it.