Mate, I would ask the following thing: If you noodle around all day long with a device which only helps your left hand, isn't there a big possibility for your hands to develop in an unnatural way (left hand way more than the right one) ? I have never used such devices and this idea was the first one which came to my mind after browsing through their site a bit.
I agree with you! That is why I only used it on the days where I practiced legato(I would sacrifice my lunch break at work). Or if I have nothing to do and need to kill time. I could see how it would help you warm up your left hand however if you are in a confined space(like a vehicle), and are heading to a gig.
String winder !!
I've never had one of those
They work great! I would miss mine, tonnes if I had lost it!
As for strings, I use D'addario EJ21 Jazz Light 12-52 on my Ibanez Artcore, and GHS Pro Nickels Roundwound strings light 10-47 on My Schecter. I used Dunlop strings on my schecter in the past, but Guitar Center was sold out the last time I went to buy them. the GHS don't feel like normal GHS strings(I HATE the way GHS BOOMERS feel on my fingers). On top of that. I have abused them as bad, if not worse than I abused my Dunlops, and they still play wonderfully after 5 or 6 months. I had my Dunlops for about a year? Best strings I have ever used for metal. I just think that D'addario has a better tone for everything else. My acoustic uses D'addario Phosphor bronze(I almost forgot that tidbit of information).