What i forgot to say is...
If you are catching skippy's for bait for bottom fishing then double hooks are the go. You can use heavier line weight and just crank them in no worries.
If you want them for livebaits then single's do less damage and your bait will survive longer. Doubles just do too much damage. The best hooks i have found are the gami and owner livebait hooks they have a nice short shank and good open gape. The short shank is good as there is less movement in the fishes mouth compared to one with a long shank.
As for hook size effecting the action of the lure i wouldn't worry too much about that with skippy's. Jeez they bite the swivels running through the water and they don't have alot of action to them.
Most hooks will catch fish but the main reason you pull hooks is more on the tackle you are using.