in my humble opinion, when you quote that Shri PVNR sir or Giri Sir are not checking bhav or any other seniors are not checking bhav but advising to check bhav chart remember firstly – for them with experience and checking more than 100 charts they can see the degree of planet in lagna chart and gage if the planet is falling in cusp degree or not it comes with experience of reading multiple charts…even a certain degree will tell you which navansh placement or if cusp degree then confirm in bhav…hence please don’t abruptly doubt the actions first observe which situations they are checking and which situations they are not checking and how confidently they are making mind calculation abt where the planet falls in bhav charts…this comes with experience of studying multiple charts…you also try and with time you will be able to gage when to check and when no need to check if you know by hearted…hope this clarified