On Saturday, October 6, 2018 at 5:59:42 PM UTC+1, Dave Springford wrote:
Filling out the discusssion to consider other options, the Duo Discus XL is the best bang for the buck in the 20 M class, unless you are looking for a self-launch.

Duo Discus has about a 1 year delivery time and Arcus about 18 months.

Self-launch is a must.