I use the LSH pouch as well, the blue one. It is a bit short, so a little velcro shows, but it is secure and protected by the pouch. Since it's soft, it takes very little extra room. That's why I don't use the CO-37, adds too much bulk.
I don't carry it on my belt, though, it's usually in my briefcase. If I am EDCing it, it's usually bare in my pocket, without the clip. I would rather use the LSH+twistie or the FF as EDC, since both are shorter and smaller than the 4+.
daloosh