Neotech is now selling the Brass Sling shoulder strap, similar to my old shoulder strap configuration detailed here. The Brass Sling is much better than my improvised strap solution as it permits better centering of weight. Attachment points for full-size euphoniums will be similar to photos in the older post linked above. Playing solos standing up (or marching) should be a much more relaxed exercise with this product as an addition to the your gig bag.