Hi Michaelpaf
First of all you have to look at the board specs! The W130 and W114 are completely different boards in length, width and volume.
The board width on the W114 is much narrower.
Sail size is just one of many determining factors, there is Salt water versus fresh water, ocean wind versus in land puffs etc.
Then you have rider experience, foil set up, wing size, to name but a few.
Any foiling board is simply a tool to get you off the beach, get to the wind line, pump ability, then you foil up, after that its swing weight.
If I foiled in WA I would no doubt use the W114, but I don't, I foil in sh!t wind most of the time, so at 90 kg I have to float to a wind line (or pump) the wind can go from 16 knots to 5 knots on the same reach. So you have to pick a Wizard for you and your local conditions and be completely honest with your self and ask which size board will I use 75% of the time.
The W130 is 188cm in length and it takes a completely different technique to pump in light winds than say the W125, the disadvantage with really short boards is your "pushing water" to get going, the shorter nose will sometimes sink into small chop and so you have to be really on your toes to pump it in light winds. If you foil where its windy, you probably will not worry about it.