J & B trailed by five points in the opening period, 25-20, with Global Accent's Romeo Faunillan leading the charge in connivance with Alfie Lansang and Onnie Co.
But J & B easily erased the deficit and shifted the momentum in its favor in the remaining three quarters to log in its second straight victory.
Michael Dumdum fired 19 points, while Ramil Japin added 16 points for J & B.
Alwen Tabasa had 30 points, while Lyndon Binondo chalked up 14 markers in a losing cause.
The Danny Duran-sponsored Loctite Super Glue, on the other hand, overwhelmed Unleaded, 98-72.
Jun Cañoneo and Rey Maraño buried 25 and 24 points, respectively, for Loctite, which also drew 13 points from Ralph Bruzon.
The scores
First game
J & B (108) - Nacua 44, Dumdum 19, Japin 16, K. Arellano 9, A. Arellano 8, Cañete 4, Abbu 4, Caballes 2, Barita 2
Global (89) - Tabsa 30, Binondo 14, Faunillan 10, Lansang 10, Co 10, Sensontic 7, Taborada 4, Tapaya 2, Petallar 2
Second game
Loctite (98) - Cañoneo 25, Taala 3, Gador 1
Petron (72) - Jayme 24, Alano 12, Bantug 8, J. Rodriquez 8, Dela Cruz 5, Quilab 4, Puyod 3, D. Rodriguez 2, Allera 2, Salacot 2, Ramos 2