QUOTE(Andromeda_Aiken @ Dec 1 2006, 04:10 PM)

What's the length of Strads and Guarneris? I've heard Strads are always smaller.
Generally speaking, Strad models tend to be squarer and wider across the shoulders, which can mean they don't always suit small hands. Guarneri instruments tend fit smaller hands better, because they generally have narrower shoulders, but there is very little difference in the length of the body of either model - unless you look at the design of the 'long-pattern' Strad, which have back lengths in excess of 360 mm. Stradivari himself wasn't very happy with this design and only produced these models for a few years. In his so called "golden period" the back lengths of the violins were between 352 and 355 mm. An instrument with a back of 350 mm or more is classed as full-sized.
Any violin with a back length of around 347 mm would be described as 7/8th. Anything between that and 350 mm could be considered a small full-size. The biggest difference between full-sized and 7/8ths usually comes with the string playing length (from nut to bridge). This can be around 6 to 10 mm shorter than that of a full-size instrument (a full-sized violin having a string length of about 328 to 330 mm). Doesn't sound like a huge difference, but for small hands it reduces the stretch considerably!!
Another important factor for the playability of any violin (or viola) is the thickness of the neck. A chunky neck will make your playing feel clumsy and as though you are trying to grip a tree-trunk. Necks can be thinned down, but only by so much because string tensions would warp the instrument.