As others have pointed-out, the use of a sail plan that relies on a relatively larger fore triangle really is best sailed with two jibs. In your case the 100 and a 130. We had both on our earlier Pearson 35 and later Sabre 42. The Sabre had a much more modern plan with a relatively smaller jib vs. main, but it still "needed" a 130 in light air to keep the boat moving. When the wind was above 12 knots on the nose, it really worked better with a 100% jib. I believe your Nordic would be similar in that regard. Our older Pearson (God bless her) had a much larger relative 'j' measurement, i.e. foretriange) and needed to depowered if we were using the 150% genoa.

If you're off the wind, with mild air to stronger air, then I think you'd not notice that much loss with a 100 -- until you start to run. Then, if you don't go wing and wing, you really aren't going to be moving much anyway without a chute.

As for the cut, UNLESS you're really sailing in storm conditions regularly and taking green water, I would tend to cut the 100 realtively low and close to the lifelines. IF you stay with a 130 as your only fore sail, I'd tend to cut it up a bit more. We've had our working jibs cut that way, while they occasionally take some water, the loss of performance wouldn't be something I'd sacrifice.

As for the vertical battens...If you only go with the one working jib on a roller furler, then they're great; however, they are harder to flake and removing them is a complication that I would avoid. You can't just cram them into a bag, etc.

We have current jib with vertical battens and believe it is really a better looking and functioning sail.

Our J/Boat has a more "modern' plan, easily driven and lighter hull, and we only have three sails (except for a storm jib and trisail, neither of which have ever been used in "anger"): a Main, 100% jib, and a asymetric chute. On our trips to and from Maine from Annapolis, we haven't taken the storm sails for the last three trips.