Date: 2019-11-12 03:13
Soaking the cork in near-boiling water for about 20 seconds worked perfectly, restoring an ideal fit in the Loree.
I am definitely not interested in undertaking modification of either instrument, especially since I play the Selmer infrequently. I have a stash of generic brass staples with the spongy synthetic cork which I'll probably designate for that oboe, as its sound isn't really nuanced enough that better staples make a difference.
Thanks for your replies.