I noticed the lack of 6B combos, might as well list some of them
(0) 6B(2)CH > 5A > 5A > j.A > j.B > dj.2A > j.C (1849)
(1) 6B(2)CH > 5A > Gurren > hop 5B > j.A > j.B > dj.2A > j.C (2305)
(3) 6B(2)CH > 5A > Renka > Gurren > hop 5B > j.A > j.B > dj.2A > j.C (3388)
(4) 6B(2)CH > 5A > Renka(1) > Enma > falling j.2C > 2C > j.2A > AD > j.2A > j.C (4255) - your opponent must be around mid 6B range for this to work
(0) Corner 6B(2)CH > 5A > 5A > j.A > j.B > dj.2A > j.C > land > j.2A > j.C > 4C (2369) - you will need to do sj.2A on some characters
(1) Corner 6B(2)CH > 5A > 5A > j.A > j.B > dj.2A > j.C > land > j.2A > j.C > Gurren > 5C > 3C (2629) - you need to walk forward a bit before Gurren, you will need to do sj.2A on some characters
(2) Corner 6B(2)CH > 5A > Renka > 2C > j.2A > falling j.2C > 2C > j.2A > AD > j.2A > j.C > 5C > 3C (4587)
If you want to dump more magatamas for damage go ahead since the proration of 6B(2) > 5A aint so bad (100,90) and (80,95)
You can also link 2A instead if your opponent is too far for 5A, but it prorates more and is only cancelable with Renka
Edit: mAc Chaos, You should replace:
(3) Throw (corner) > Renka, 2C > sj.2A, j.C, Gurren, 5C, 3C (4078 damage)
with
(3) B+C > Renka > 2C > sj.2A > j.C > land > j.2A > j.C > Gurren > 5C > 3C (4175 damage)
timing is tight but you get optimal damage, works on everyone