Roll cage tube fitment question

[Richard Kensicki <lowtek@ptd.net>]

Normally  you see cage tubes nicely fish mouthed together but sometime 
I've seen the halo bar above the driver tied to the main hoop, not with 
the tubes fitted together but sort of a lap joint. There's this bracket 
welded to the the top of the main hoop with a hole that  takes the end 
of the halo bar, all welded together.

I can see the convince of doing it this way but does it make the joint 
weaker.

RichK