reverse 4bar 6bar

I have a question about RD4B lifts. I’ve seen some advanced teams use RD4B lifts and some use a 4 bar and 6 bar combination by switching the top 4 bar on a RD4B with a 6 bar. Is there any real advantage to doing this? I know that it allows for a taller lift but is there anything else that I’m missing?

Makes room for your mg intake. Makes robot faster because higher potential height for the same amount of rotations equals speed. Besides that, nothing that I’ve heard.

Basically just for more height and mobile goal clearence like briancole said. It also gives you a middle ground in height and stability as a DR4B is short and stable and A DR6B is tall and less stable while a DR4B to 6 bar is right in the middle.