I used Fuji Klh with my 10.5ft Allstar 1-4oz rod starting with a 16mm but using 14 lb Fireline Fusion braid.Even with a Shimano Spheros 5000 it cast really well and should be even better with a 4000. If I was intending on using mono I would go with Kw because the ring size is about the same and the 2 foot for the reduction guides are much more durable.
Single foot running guides will be fine but 6mm may be too small if you need to use a 30lb shock leader to cast 3oz sinker and bait so you don't snap the 12 lb line.8 kt mm will be better if you use a shock leader.
If was to build my rod again to use for mono and braid and different size reels from 4000 to 6000, I would consider the new microwave 30 guide system.
Single foot running guides will be fine but 6mm may be too small if you need to use a 30lb shock leader to cast 3oz sinker and bait so you don't snap the 12 lb line.8 kt mm will be better if you use a shock leader.
If was to build my rod again to use for mono and braid and different size reels from 4000 to 6000, I would consider the new microwave 30 guide system.
