When blocking Nu's 5DD 4DD, you can back-dash in between 5DD 4DD, as in 5DD (back-dash) 4DD. Also, neutral techs are the safest way to get up, as in pressing 5A and not 6A, etc. This is so you can avoid Nu's typical combo of 5DD 6DD 2DD, etc.
GG's, I really like your Rachel combos.
