Distance: 1.5 km (1.0 DOC hours) - Unmarked route, clear - Easy-moderate terrain
Altitude: 1294m to 1520m. Gain: 254m. Loss: 156m . Gradient: 16 deg (Moderate)
Skills: Alpine weather (2/7)

Unmarked route, clear (7/9)
Unmarked route, follows obvious geography (river, spur, trail, etc)

Secondary, unmapped (4/5)
Route not on maps, an alternative recognised access to hut or along range / catchment

Moderate (difficulty: 3/5)
Occasional moderate climbs

Easy-moderate (difficulty: 2/5)
Tussock / river-gravel / open bush / cut track

Alpine weather (difficulty: 2/7)
Tramp on open tops, exposed to alpine weather

None (difficulty: 1/6)
No unbridged river crossings

Unknown (difficulty: 0/7)
Not specified

Accessing Bannister from the west is easier than the east. Drop east to the broad saddle from pt 1434 then make a long steady climb to the Twins. A steep descent to the next saddle and ascent follow to Bannister Peak follows, but it;s a tramp on rock and tussock, no a climb or scramble.

Note: Described in the reverse direction to your journey

East of Bannister the going improves. Its a steep descent to the saddle, and back up the the Twins, but at least its no longer rock climbing. A long, steep descent follows to the low saddle and a final 100m climb up a broad tussock face to the Main Range at pt1434.