Well, you got my curiosity up with sycamore maple.....a new one on me. Did a little research and here's what I came up with.
Sycamore maple wood: It is planted for timber production; the wood is white with a silky lustre, and hard-wearing, used for musical instrument making, furniture, wood flooring and parquetry. Occasional trees produce wood with a wavy grain, greatly increasing the value for decorative veneers. The wood is a medium weight for a hardwood, weighing 630 kg per cubic metre. It is a traditional wood for use in making the backs, necks and scrolls of violins. The wood is often marketed as rippled sycamore. Its uses are mainly indoor due to its perishability when in contact with soil.
Could make a pretty good bow. Keep us posted.
Drew