I just found this. Apparently there are several varieties of cooking bananas and saba. Not just two. The banana farmer that I buy bananas from did say that he was the only person that grew this variety locally. I will get the name from him next week.
"There are numerous cultivars under this type such as Cardaba, Abutan, Inabaniko, Turangkog, Sabang puti, Mundo, Gubao, Saba sa Hapon and Bigihan. However, the most common cultivar with commercial importance is the saba"
http://cagayandeoro.da.gov.ph/wp-con...TION-GUIDE.pdf