It is rather obvious that this forum is used mostly by elctrcicians, And that is O.K. but when you have Phone and data and coax issues Electrcians, I am speaking in General now, are not that good at it. I Do clean up after work is done all the time and a 110 blocks are not generally a good idea to use on voice work. The reason is you can't use a but set to check for troubles. A 66 block with all pairs punched down is important. Twisting runs together and using a wire nut is the worst thing you can do. Also Make sure you know the color code don't make up your own. Re wiring all the jacks in the house gets old.
As far as coax goes a good brand of splitter is generally available through proffesional distributers some of which are mentioned here but a cheap one, especially in a 6 way is just that cheap.