Probably what is a stupid question.. but in terms of flying the reverse tracks of established IAP's such as DGA's etc for departing in IMC in terrain rich environment- what is the safety buffer against a potential collision with another aircraft doing the actual approach? I was always taught the NVFR procedure of climbing within the circuit if possible and/or confines of the aerodrome to LSALT but for IFR it was a case of the pilot calculated/Chart LSALT/MSA and intercepting that ASAP after departure.. however on departure/initial track i may add..