I actually asked about this before I think and ended up putting my 60x loupe away in favour of a 15x triplet.

I'm not all that impressed with it to be honest. I still have to get too close which is obviously not ideal, especially when I'm looking edge on for sparklies. I also notice that the edge is curved a lot more than with my old 60x so I must have a really rubbish triplet i guess. The center of the view looks good but the edges curve so it isn't great to use, are they upposed to be like that?

I am very seriously considering a 10x triplet, hopefully it will have better optics and not have to get so close to my razor.

What do you guys use and what do you recommend as a decent loupe.

My 15X has LED which is very nice because I don't feel I can see as well without the light but again I would love your input so i can get the right thing this time instead of ending up with a loupe collection.