Sail too big or full –

Pulls you about, fighting catapults and constantly heading upwind.

Sail too small –

Difficult to commit to the harness, slow or always dropping off the plane.

Not enough downhaul or outhaul –

Sail too full and touching the boom, hard to rotate, and harness lines always feel wrong.

Too much downhaul or outhaul –

Rig feels twitchy, ‘on/off’ and un-settled

Fin too big –

Board constantly heads upwind and lifts out of the water.

Fin too small –

Spin out, can’t keep upwind or hard to get planing.

Board too big –

Leaps about in chop and constantly feels ‘bouncy’.

Board too small –

Slow to plane, hard to keep upwind, sinks when you least want it too.

Board rocker too flat, hard railed and narrow –

Too fast and hairy over chop and very difficult to gybe.

Board has too much rocker –

Slow to plane and difficult to keep upwind.

Boom too low –

Slow to plane and encourages bent arms and legs – not great!

Boom too high –

Loss of control.

Harness lines too short –

Prone to catapulting, bent front arm and hunched stance.

Harness lines too long –

Bum hits water, feel unstable.

Harness lines too far forward –

Backhand is always pulling way down the boom pulls and you can’t sheet in.

Harness lines too far back –

Too much pressure on front arm.