I don't really have anything against solder sleeves, but have never seen a need to buy any.
When I need to splice a wire, I use solder and heatshrink.
When I need to terminate the shield braid with a ring lug to attach to a connector shield block, I go old school.
1. First, mark the location where the insulation is to be removed. “Three fingers” is a common length, but some prefer “four fingers” for a little extra length on the wires.
2. Next, lightly cut the insulation at the mark with a single edge razor blade or other sharp knife. Make sure that the braid wire is not cut in the process. Remove the outer section of insulation either by pulling, or by lightly cutting along the length of the insulation.
3. Next, bend the wire at the end of the insulation, and using an awl or other pointed, smooth object, carefully separate the braid and extract the wires out the side of the braid. Make sure and don’t nick the insulation on the signal wires.
4. Finally, add a small piece of heat shrink tubing to stress relieve and tidy up the junction. Crimp on the ring lug which will be screwed onto the connector shield block with a #8-32 screw.
You can go forward or backward with the direction of the shield braid. I like to bend it back before adding the heat shrink since it will be connected to the shield block at the back of the connector.
Steve