Its all good chagovatoloco
I have built countless manifolds for folks and this is by far the best way to do it.
Some of my custom triple mods are configured in a "X" type fashion.
Most of the time folks with manifolds have long lines running to different tanks and boosting pressure is a way to achieve adequate flow.
This also depends on diffusion method as well. So there are many other factors involved with this.
It can be confusing at times. The main thing I stress with the OP is to get there regulator in working order first before trying to fix anything.
If your regulator does not function properly, then neither will anything attached to the regulator.
Best Regards, Orlando