I am not a durian expert, I don't know where to get the best durians.
There were only a few D24 and MSW left when I reached there last night. One guy quickly asked me if I am eating on location and hurriedly rushed me to go in and sit down even before I can ask any question, or specify what I want, or take a good look at the durians. He then brought a durian to my table after a few minutes. When I left the place, I noticed all the durians are sold out.
The reason I am willing to pay the high price at Combat is because I thought it is newbie/non-expert friendly. If I know how to choose, bargain and argue, I can just go to any ah beng durian shops.
Anyway, lesson learned. Now I can just eat the S$10 D13 near my place.
Note that I have had good KoK and MSW at Combat before.