Guitars Upgrade Tremmory M

I purchased this one so that I could easily drop tune my low E-string without affecting the others, and it does that well once set up properly.

Playing with the Tremmory feels much like playing a hardtail, but still being able to use the bar in both directions. The only limitation I know is that I can't slap the bar to make a Petrucci style flutter.

The setup itself was rather complicated. I highly recommend that you measure the distance for your tremolo springs according to the manual from Guitars Upgrade before choosing what size of Tremmory to buy.

I'd say the main advantage is that the tremmory isn't a permanent mod and it can theoretically just be taken out and mounted into any other guitar, but given the time and effort it took me to get the balance right, it wont be taken out anytime soon.

I also broke a string once without affecting the tuning of the others.

I would recommend this if you really don't want to drill or screw anything into place on your guitar, but I think there are easier and cheaper ways to achieve the same functionality.

I've installed it on my Ibanez RG as a replacement for a middle spring. Was not sure about the size, it's really unclear which one to get (hint: S fits on RG with 3 stock springs and 9-42 strings, M - with 2 hard springs, L is probably to big to fit at all).

Works really well after oiling internal moving parts and replacing default tension spring with the other one supplied. Internal spring replacement is not so hard to do, as spring chamber is easily accessible (via small cap on the long end). Also I was really surprised with packaging quality, it even seems little a bit redundant, as you do not really need cotton pouch when Tremmory is installed, however it's nice to have anyway.