An intonation tool is a MUST
Why do I say this?
For the following reasons:
While recording the last albums we kept on (as part of the general curse in the whole studio) having massive intonation problems. Guitars that were in, were out the next day. Having to apply the slack string and guess method just adds to the stress, and just makes it a bastard to set up. With an intonation tool this would be a lot lot lot faster
Last weekend my guitar tech (the poor soul) had to reintonate my entire guitar after i decided to do a manowar and rip the strings out of the bridge (not recomended, but looks good), forgetting that it was a new edge, thus pulling all the saddles out of alignment (the trick used to work quite nicely on the lo pro, but the new edge...if I want to keep the tech I have to stop doing this
), Now, with an intonation tool this process would have been simple quick and a lot less strain.
So an intonation tool is more than a gimmick. You get all the allen wrenches and truss rod adjustors with a guitar, why not an intonation tool? It's be VERY VERY VERY Usefull
other than that, I'd quite like to see some kind of mechanism with which to lock the trem without having to use blocks of wood, gaffa tape and the odd 2pence coin (when desperate)
Something simple that can be turned on and off. And no, the ZR trems is not what I am talking about as they feel absolutely horrible to pl;ay on for me at least...