A couple of days I do my best attempt in Multi-Blind (12/13 in 44:13), now, I'm trying to do 17/17, but I don't know how to improve my memo system, I do it like that:
1-3 memo
1-3 Review
4-6 memo
4-6 review
1-6 review
7-9 memo
7-9 review
10-12 memo
10-12 review
7-12 review
1-12 review
3BLD...