I've made this clear on the work order, but one thing we prefer for special sptrings is that you send us a set of what you intend to use on the bass. This way, we'll make sure that the tensions involved will work out best and be the easiest for you to adjust for in the future.
Please send them to:
Alembic, Inc.
Attn: Mica
3005 Wiljan Court
Santa Rosa, CA 95407
Thank you.