Jim, All kidding aside, unfortunately age does seem to be a factor. My nails were much harder and grew quicker when I was young ... not so anymore.
Alex, I wouldn't know how to help since we have different issues. I would only note that, when you watch all the top pickers, you'll notice that they use natural nails (John Knowles, Craig Dobbins, John McClellan, and others), artificial nails (Richard Smith, Pete Huttlinger), or no nails (Tommy Emmanuel). I don't recall seeing any use the attached nail picks. But, assuming I got that wrong, and there are actually a few who do, they would appear to be in a significant minority. I would guess that the reason for this is that the attached picks are just not a good solution. You might be interested in this video by James Taylor:
http://www.youtube.com/watch?v=7BqISqpMRo8Although I've gone less than a full day with my new index fingernail, I can see where attached nails can be problematic, too. For example, a little bit of the chemicals she used in putting on the nail, have flowed under the usable area of the nail and have hardened. Ideally I might be able to file that down, and get rid of the clicks that it is causing, but it makes me realize I am going to have a similar problem as my real nail starts to grow back out: there's going to be a click as I strike my acrylic nail and then my real nail as I am pulling off. Sorry that the wording on this is a bit clumsy, but hopefully you can see what I mean.
I wonder if anyone has successfully gone from using nails to not using nails? I didn't use nails until I was about 30, when I took a half dozen classical guitar lessons. I wanted to switch to using nails for more precise control and a better sound, and to get away from having little dead spots on the ends of my fingers (calloused spots that would sometimes split and be a total annoyance).
Note that I use nails that are a good bit longer than is recommended by most professionals. Part of the reason I do that is that it allows me to have some wear and tear without taking away my ability to play. I have become accustomed to having long nails when I play, and it's very hard for me to get by with the recommended 1/16th to 1/8th inch nail exposure recommendation (Chris Parkening and, I think, if I remember right, John Knowles ... I know John uses short nails, I'm just not certain of the length).
Anyway, no solutions from me ... I'm just a learner when it comes to figuring out what to do about nails.