| Specifications |
| Level |
Custom |
| Key of |
Bb (YCL-CSG/CSGH); A (YCL-CSGA/CSGHA) |
| Fingering |
Boehm |
| Key System |
17 keys, 6 rings |
| Barrel Length |
56.5 mm |
| Body Material |
Grenadilla |
| Barrel Material |
Grenadilla |
| Bell Material |
Grenadilla (no metal bell rim) |
| Key Material |
Nickel Silver |
| Plating |
Silver (YCL-CSG/A); Hamilton (YCL-CSGH/AH) |
| Bore |
Machined and polished |
| Tone Holes |
Tapered integral type with hand-sculpted undercut |
| Thumb Rest |
Fixed |
| Mouthpiece |
Yamaha 5CM Ebonite |
| Mouthpiece Cap |
Silver-Plated |
| Ligature |
Silver-Plated |
| Spring Type |
Blue steel needle |
| Pad Type |
Lucien deluxe with nylon button |
| Posts |
Threaded |
| Options |
Left Ab/ Eb mechanism |
