If you are looking for the rod to be light there will be a big difference in 3113m and 3106 lb, I like longer rods so now I fish a 3113 lb that was custom built , way thinner cork and shorter than factory, super light reel seat, and a 4 Milner kingfisher.
This setup is feather light , what I prefer for steal heading .
Some guys think 4 inch centerpin has slow pick up and don't prefer it, but I find that 75 % of casts while steal heading are close and not too long of drifts, so my opinion weighed in towards rather having a light setup vs pickup and speed of reeling in.
Also because my shoulder was always sore after a day of fishing with a 3113 m paired with a islander reel what I had before...
Everyone has their own opinion , but I found that 3113 m was too heavy of a rod for vedder stealhead.
By the way , I landed stealhead in 20 lb range, fought lots of huge chum and had 30 lb springs landed no problem with my 3113lb, yet at the same time catching a bull trout of 2 lb would feel great just like a five lb fish .