No creo que deba 4betear preflop pq sólo me aislo contra manos mejores. En flop cómo veis un xraise? Y en river una blocking bet de 1/3?

Poker Stars, $0.10/$0.25 No Limit Hold'em Cash, 5 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.
SB: $15.47 (61.9 bb)
BB: $25 (100 bb)
Hero (MP): $38.70 (154.8 bb)
CO: $25 (100 bb)
BTN: $25 (100 bb)
Preflop: Hero is MP with J♣: J♦:
Hero raises to $0.75, CO folds, BTN raises to $2.25, 2 folds, Hero calls $1.50
Flop: ($4.85) 3♠: T♣: 9♠: (2 players)
Hero checks, BTN bets $2.75, Hero calls $2.75
Turn: ($10.35) Q♠: (2 players)
Hero checks, BTN checks
River: ($10.35) 8♠: (2 players)
Hero checks, BTN bets $7.75, Hero ??