Switching back to 3x9 because I'm a big jessie, I've been using cheap clarks for the rear, having to replace every now and then due to the local sandy conditions.
Is it worth spending the extra for [url= http://www.chainreactioncycles.com/shimano-mtb-gear-cable-set/rp-prod71582 ]Shimano[/url]?
I've always bought [url= http://www.amazon.co.uk/Shimano-outer-casing-silicon-grease/dp/B000NOTM84/ref=sr_1_1?ie=UTF8&qid=1395571512&sr=8-1&keywords=shimano+sp41 ]bulk outer[/url] (end caps & ferrules off ebay) and inners as I need them. Though I run a number of bikes, repair other ppls bikes, & run full outer on all my bikes, so it make more sense. That said, if you only have one bike, the shimano kit contains a comprehensive set of seals for the cables, which do work well.