You can downgraded any UGs Quality and Shooting Skill by one level but as demountables have fixed stats you may can gain a points advantage by downgrading the mounted and deploying dismounted EG.
English knights- Cavalry, Average -/Fully Arm, Charging Lancer, Devastating Chargers and Dismountable 153 points each.
Dismount as Formed Close, Average, Fully Armoured, 2-H Cut & Crush (135 pts each)
If you take them as a downgraded mounted Poor they are 92 points each but still dismount as Formed Close, Average, Fully Armoured, 2-H Cut & Crush.
Something to think about for next years lists?