enclosed jacks vs. plain old Switchcraft jacks

I've used ordinary Switchcraft jack in projects and think they're fine. I know of some builders who like the nicer enclosed/isolated jacks like these (http://www.mammothelectronics.com/4SJK103M-p/610-1004.htm). I'm intrigued.

Does anyone know reasons why I would or wouldn't wat to try them in my next pedal? Are there grounding issues? (I think the plastic jacks are isolated from the enclosure.)

http://www.pedalpartsplus.com/mm5/graphics/00000001/Neutrik%20Enclosed%20M%20Jack.jpg

Thanks!

I use them sometimes for the reason you mentioned.When I don´t want to ground the jack in the chassi.The different switches are also useful.You have shown a jack that is a normal mono jack but there are jacks that have 4 or 6 lugs who make or break connections between them when you insert the plug.The jack on the picture should go on the output of the pedal because you need one more lug for the battery to switch the pedal on.

I usually use plastic jack sockets because I can get them cheaply from Rapid Electronics. I don't think it matters which sort you use unless like you say, the jacks need isolating. I have done this a couple of times when I accidentally bought metal power sockets. Admittedly the plastic sockets might not be quite as sturdy but they're ok. If I use the switchcraft style jacks it's usually just for the look of the thing!

I think they look a lot nicer from the outside, but like mentioned, you'll have to find a different way to ground the enclosure. They're handy in amps to have all the switching options.