I'd love the have a macro lens, but those are a wee bit pricey for me, so I went with these close up lenses. I read that with these lenses you do sacrifice sharpness a little, so on to experimenting.
I took a ton of pictures to show the results with the various lenses. Each picture was taken in a light box with a tripod and given a 2 second timer (for my wobbly button mashing fingers). I had it set on f20 so each time the camera took a picture, the lens was open for about .6 seconds. I'll let you all be the judge of which one is the best.
Here is +1

Here is +2

Here is +4

Here is Macro

Here is Macro with the +1 screwed on top of that one

I'm still not quite sure which one I'm going to end up using. I think it would look different with sets of beads, so I'm sure I'll try that, but for those of you with focals I hope this experiment is helpful.