Some good advice here, you guys have gotta get a life though!
Anyway technically if yr OCTA & you have an approved LRN GPS then a sector entry as we know it isn't required as such as long as you stay at or above the LSALT which you can guarantee to stay in & should know due that GPS system then you can maneuver around anyhow you like to do a sector 3 (direct)making it so simple.
All NDB's & their associated procedures (sector entries) are surveyed way out to buggery for safety reasons not that that's an excuse to go wander off 'till you get close enuf:-)
The +/- 5 deg's tolerances although a legal requirement is bloody near perfect anyway if you can steer it in TS's & and an old fixed card ADF
Wmk2