For me Kubelik + SOBR always benefited from concert situation("here and now ....") making their approach more emotional and forward - don`t get me wrong, I really do appreciate Kubelik in studio surrounding a lot, but sometimes would wish him being a bit less restrained ....
Btw Mahler 1 :
Probably the most concise reading I know - the best transfer (still) available via here
http://www.cdjapan.co.jp/product/KICC-3664