TC, we have a similar problem with aircraft routeing from LAM direct for RW25. The 'gotchas' are normally helos tracking the BNN 133 radial hoping for a SVFR clearance into the CTR just north of Brent. The problem is that these helos often blunder on expecting a clearance that will never come despite being told to remain outside of CAS. Closest point of confliction is 8nm finals with approx 1nm and 500ft separation; I'm inside, they are outside on a 90 deg convergence!