In my case the rooting success is different from the survival success.
I had 4 each of M. Falcon and Nero 600, 2 of CDDG, 2 of Abebereira in February. Rooted nicely 2 of each variety, all died a month later :(
I started about 14 different varieties, only those 4 gave me a hard time, the rest have grown up to 1 gal or more.
That was esp. sad since I paid the $$ for the MF, Abebe and N600 cuttings. The Abeberaira is that bad for the second year in a row.
On the other side, the RdB cuttings were totally bad ass! Every one rooted, even the ones that looked super miserable and had 0% chance from my point of view.