Thanks to all for your input. We are currently using ARINC for flight planning with a link to APG (aircraft performance group) that provides us with DP's for each runway (rwy analysis). Most of these DP's closely follow the published SID's but allow a greater MTOW. The issue for us is how do we ensure that we are breifing the procedure correctly- at what point do we abandon the special DP and revert to the published SID, how do we set up the FMS's to fly the DP, if we increase our T/O weight will we still be able to not hit the mountain beyond the V1 speed- I guess I was wondering if any of you guys have some sort of formal procedure that addresses these issues- beyond a 3 hour departure brief.
Thanks