In this case you are playing with a deep stack (300bb) for which you can better provide your betting sizes, taking into account that the villain you face also has a condition similar to yours.
On the turn, you must ask yourself what
hands of rank v, can make 4bet from co on a high structuring board.
If we think of the range of the villain, we can polarize basically 2 types of hands: sets or combo flush draw.
It should also be noted that the fact that we block the main straight, does not mean that it is not possible for CO to have a T in its range. In fact villain has 9 free A-T combos, which could perfectly be included in its CO range.
Besides, since we don't have a clover blocker, we can think of the idea that this villain is probably willing to look for all his positive equity at this point. This is one reason, to protect our calling range to a 4bet of CO position.
An 5bet from us, automatically commit the stack v to the pot that is played. The same thing happens with our stack. On the other hand, the call to 4bet of the turn, allows us a greater margin of playability in the river, to make better decisions, with a greater degree of analysis.
In that case on the river, the Q is bent and the flush line is completed.
Now we lost whith A-A (3 combos) J-J (3 combos) K-K (1 combo) Q-Q (1 combo) and clover combos . Our hand can now become in a
bluff catcher and maybe we will be defeated many times with better hands, but our line will probably have less negative impact, since we will only protect our range of calls, without creating alternatives of out of position attacks.
Greetings.
