TS are u mostly using it on lighter guys? Just bc I have never had anyone my size use KOB regularly or really at all with any great degree of success. Only guys that out weigh me by 30+ lbs are able to stabilize KOB...otherwise I find it pretty easy to push their knee off and get reclaim guard. Likewise I only use it against lighter opponents for the most part. If u ARE having success against bigger guys what is it that is making it so successful? The grip on the lapel? Controlling the nearside arm?
Anyway I prefer no gi....and I veryyyy rarely use KOB, there just isn't enough stability or LOGIC to do so IMO. I tend to use the X pass....so I pass very loose and when I end with KOB I just immediately drop down to side mount to get better control, mount or look for a submission....but I never stay there.