HI Zac,
The 72-Offshore makes a great PE#4-6 outfit. It balances up much better with an 8000SW or a 4500-5000 Saltiga rather than the smaller 5000SW.
I've attached a photo of the rod lifting a 7.5kg weight. You can see the rod has a fairly moderate action making it very comfortable for fighting fish. This rod has a heap of power but remains very lightweight so using it all day on big fish is no drama. The rod carries its stiffness all the way into the tip so working poppers is very easy.
Really delicate surface stickbaits may be a little difficult on the rod as it has a fairly stiff tip and you might lose some of the finesse needed to really get surface stickbaits working. On the other hand working sub surface stickbaits becomes easier because the water resistance starts loading the rod into that moderate action meaning you can still get some nice action out of the lures.
100g would be no worries for the rod. I think the sweet spot is somewhere between 60-90g but i have no hesitations that it could handle right up to and probably slightly over 100g lures.
If you have anymore questions please do not hesitate to ask.
Here is a link to the rod
http://www.fishhead.com.au/store/products/FCL-Labo-UCB%252d72-Offshore.htmlCheers
Tom