Grease on the front discs is a big NO NO and the vital precaution to be taken when greasing the sliding pillar suspension it to keep surplus from going where its not wanted. Paper towel kitchen wipes are good for this as they can be torn into long strips and threaded between the shock and the pillar. Remote greasing points could make it all too easy to forget to remove surplus from around the lower bearing where it always exits. Remove as much as possible before greasing and then again after using the gun to re-grease. Confident the fresh grease has got right through and sufficient is in place; I find the steering SO much improved immediately afterwards that its done by me, every 5 or 6 hundred miles. The gun I use is a Wanner second hand bought off Ebay £20 or thereabouts with a flexible short hose that enables alignment with the nipple easier and blue Vinyl disposable gloves just like Eddie China uses. I find that this gun requires about 14 strokes on the topmost nipple, 3 or 4 on the lower nipple.