I like the durability of the heavier sail for cruising. Lighter would be marginally better on the low end but you aren't
racing. If you
cruise off-shore and think you might operate in swells and short handed the 1.5 will hold shape and be less prone to the rapid wear of many hours of chafe etc. The lower end use will be around 5 to 8 knots apparent. 3/4 will get you down to 2 or 3 apparent. Above 7 or so they will both fly. If the
wind pipes up, the 1-1/2 will not stretch out. As an AS, you will be flying on a reach probably so apparent will be on the beam more or less.
There are a number of new things (equipment) available now. At the All Sail show in Chicago we saw a code zero-like device that wraps the kite around the loose,
code zero rolling forestay. Drop the whole thing on
deck and pack it away. Hoist the wrapped up sail and unwind it.
The heavier sail will be physically harder to hoist and retrieve. We hoist our 1.5 AS from the turtle on the
cabin floor through the
hatch directly and in its ATN snuffer. It gets snuffed and dropped back down the
hatch. I can barely
lift the sail in its bag so it never comes up any other way. We are 58 feet and the
mast is 80. The AS is nominally a 200 % geny. Our rig is
ketch so we also have a mizzen staysail. It is really easy to hoist and retrieve and usually adds a lot to speed.
Before you buy you can check prices on the many used sail sites.
If you have tracks, add a couple blocks so you can run double
sheets. One aft in proper line and one forward to choke it down if necessary. We have a traditional pole, topping
lift & foreguy. We run the pole low since the sail luff is long and the sail is relatively flat. How will you handle the tac? If you intend to make the tac to a forward
deck fitting you may want to add a pennant to elevate the tac over the rails. Blocks should be large as you can stand. Try
Marine Parts Depot on line for blocks you can afford.