Send FX in Studio One Overbridge use

Hey

A bit new to use of OB in Studio one.
I tried to find the answer in here, but other thread wasn’t totally clear… hopefully someone can make this a bit clearer for me…

I record my ARMK2 and A4MK2 as separate audio tracks inside Studio one 5. So far so good.
However, I want to use VST FX inside Studio One as the hardware FX is only on the Main Out.
I guess the correct way is to put a send the individual tracks to a Bus/FX channel with Delay/Reverb.

My question is if I should put the send on the input channel from A4/AR (1 in image) or the recording track (2 in image). I tried both, and it seem to work either way, but is one way better than the other? Thanks!!