Some thoughts on Singed. ?

I personally have him as my most played champion (not in ranked, i Do not play ranked enough to even get to that point yet)

but i typically have roughly the same core build and have been experimenting some with it

The usual : , gold rush. B. . . .... then usually I do not get to get another item, or I get dead mans or zz, or i finish my tear item since its fully stacked.

lately in a few games I have been trying out rabadons with rod and the tear item and rylais still. theory crafting how to go about this the best is where I am coming in a little blank. I hardly use rod at all so I am trying to think of how to best use it. I even once built double rod then rylai then rabadon then finish tear item. But as far as the second type of building using rod. I am curious if its even worth exploring or not. I can also easily get 1000+AP on singed with multiple rods and raba. but I realize that takeks FOREVER, and eventually i sell boots for rylai if I am running multiple rods. and this is just me messing around more than actually using it in games that arent bots or customs or something. but I am curious what some other players think is more efficient. personally my usual feels the most effective when I use it but that might be due to comfort and knowing what my power is and how much I can take. but the rod and raba combo feels.. more rewarding late game if it can be achieved. but how would I do this the most efficiently (especially if we need a tank because you get hella tanky with multiple rods and his passive and tear finished)