lastinv key switching to different default weapons?

[KubeDawg]

So I rarely ever use my number keys to select my weapons. I always use the nextinv or previnv or lastinv buttons when switching weapons.

When I do this though, when I respawn, it sometimes defaults to a weapon I don't want when I use the lastinv key.

So for instance, if I start out respawning with my super shotgun as engineer, and hit my lastinv key, it switches to my railgun by default. I'd like it to switch to my wrench instead by default. Is there any way to make this happen? I know there's a way to change the weapon you start with, but is this possible as well for your secondary?