CB Antenna - Bullbar or Gutter Mount?

[Barrbeast]

Right since it's now on my radar for the Wales trip I've been looking at CB's and whip antennas to replace my handheld and mini whip.

I've found an 80 channel Midland cb for a good price and so I'm now looking at antennas.

Question is - Do I mount it to the bullbar like I planned or do I buy a gutter mount and put it on the rain gutter?

Pro's of the gutter mount is I won't need to run the cable through the firewall (it can go through a back door like my current mag mount) so I can remove the aerial when not in use. Con is that it'll be higher up so more exposed when laning/offroading (?)

Pro's of the bullbar mount is the hole's already there (ARB bullbar) and I can see what's happening with the antenna at all times as it will be in front of me. Con is that I will probably have to run the cable permanently through the firewall.

Opinions?