The Spirit Elite have a flat bottom airfoil. This plane would propably be the best for bungee and thermal flying. Also performs OK on the slope, but have limited speed and acro abilities.

The ASW have a modern HQ airfoil, quite thick but good for allround flying. This plane would both fly good in thermals, and will also be alive, fast and agile on the slope. But I have a feeling you won`t get same height on a bungee as the Spirit. If you use a winch it will be opposite, since you propably would be able to zoom the ASW much higher. If the airframe take the stress