Since 2007 (especially from 2013) I read full scores of my violin repertory which I performed and I will perform as soloist with orchestra oftener than before as well as I have more occasions to perform with orchestra (I read not only the full scores of the Violin Concertos by Niccolò Paganini but also other violin works of which I perform as soloist with orchestra).
As a violinist I used to study and practice my violin repertory with only high quality-edited violin solo parts by celebrated historical violinists as well as Jascha Heifetz, Zino-René Francescatti, Ivan Galamian, David Fedrovitch Oistrakh, one of my last professors Toshiya Eto (1927 - 2008 ; photo via Bing.com ; he was much younger than when I was one of his and his spouse Angela Eto's pupils) with his spouse and also one of my last professors Angela Eto, etc.. This studying process is really practical and extremely intensive to master one repertory with good practices based on certain method. It can make us really capable even to perform with accompaniments without reading piano scores or full scores, unbelievablly.
However reading and studying full score for violinist(s) aren't indirect methods, at all. These approaches reduce our required practicing time to master our targetted work. And what's more ; the more I read full scores the more I have musical ideas not only for my interpretations but also compose myself something or transcribe myself some works. They will be practical also for learning orchestrations and practical harmony methods and it will be not only violinist(s) like me but also other musicians, I think.