x=1.00, release at the line (Paper 4: contracts, fails)
   Moon centre 17,240 km (line 17,168), pedestal base 8,771 km wide, length to Moon base 8,747 km, mass 10% Earth = 8 lunar masses, tension beyond 13,758 km
x=1.068, first release at perigee (recedes from start)
   Moon centre 18,704 km (line 17,444), pedestal base 8,907 km wide, length to Moon base 10,211 km, mass 12% Earth = 9 lunar masses, tension beyond 13,950 km
perigee at fluid Roche 19,971
   Moon centre 19,971 km (line 17,734), pedestal base 8,984 km wide, length to Moon base 11,478 km, mass 12% Earth = 10 lunar masses, tension beyond 13,980 km
x=1.15, Paper 4 reference (passes both)
   Moon centre 20,596 km (line 17,834), pedestal base 8,997 km wide, length to Moon base 12,102 km, mass 13% Earth = 10 lunar masses, tension beyond 13,917 km
