WE well actually I have, perhaps not as recently as I should, and I have a lot of sympathy for the problems faced by ATC. How is it to be resolved? Not by imposing ROCAS ad lib, that just exacerbates pilot views of ATC, albeit unfounded. If you respond to traffic and find them unable to observe the clearance then why not give them a course straight out of your airspace and rescind the clearance? There are notable areas where the access to CAS is very good and there are times when the service surpasses all expectations but, sadly, my experience in the UK is there are a few who seem (note I said seem) to just be obstructive and forget they are supposed to provide access equally when safety allows. Our airspace is complicated and so very easy in marginal or poor conditions to inadvertently stray from a planned route so a little help from a radar unit might go a long way to avoiding infringements for those who are inexperienced or not so adequately equipped, don’t you agree? And just for the record I always plan a route away from CAS but that should not be necessary I think and it can add considerably to distances and costs.