I've seen a few people attempt to approach SHEED at F speed then take gear down prior to the descent. Don't to this. Pull speed at 160 (unless you have actually worked out what G/S-mini will be targeting), and take the gear once you have commenced your descent.
By not selecting speed and/or taking gear too early, at best it will give you "SPEED, SPEED, SPEED".... at worst you will find yourself in Alpha Floor. Or if your not an Airbus purist, you could take it one step further but it might offend a few people who believe the stall limitations only apply in ALTN or DIRECT Law.....