I think my ear is ok for 3rds and 6ths, it's getting my fingers round them that will be a problem.
Small hands and 6ths are fine, but 3rds do generally need a bit more work for those of us endowed with a less than ideal finger length or hand size. Same with rapid reaching of notes by the fourth finger while in first position.Finding the right violin with a playing string length that suits your hand is often a goal one needs to seek, rather than grappling with a full-sized, often quite big, instrument. It is also a preferable choice compared to straining the hands. I'm not saying this is the ultimate answer, because even a small full-sized instrument will still need you to work hard, but you won't feel as though you are having to do battle all of the time.
Neck thickness is also another consideration for small hands. A nice slim neck on a violin makes playing a lot easier too. If the neck feels like you've got your left hand wrapped around a tree trunk, your playing will forever feel insecure and reaching across to the G string will become a chore, particularly for the little finger. I actually had the neck thinned slightly (by a couple of mm) on my own violin and it made a huge difference.
But, take heart. Tasmin Little has tiny hands, but it has not held her back. Ida Haendal also has very small hands and she too managed to forge a sucessful solo career. Where there's a will there's a way, so stick at it.
I'm about to start learning some of the Paganini Caprices. Until now, I've avoided them altogether, because I've never considered my hands to be large enough to cope with some of the intervals. However, a very experienced professional violinist colleague of mine has suggested some very ingenius fingerings that make playing the caprices possible, even for diddy little hands like mine. Now all I need to do is get my eyes and brain around the sea of notes.
