Smoke on start
The RB211 series DO NOT NORMALLY exhibit such volumes of smoke on start. It seems obvious to me that these engines had been inhibited for long term storage and that they had not been started in quite a while. Normally fuel is introduced at either Max motoring RPM or 25% N3. It was also not clear if only No 3 was being started in the video clip. If so, the start was probably slower than usual due to pressure loss (APU output) because of the distance of the APU from No 3 Engine. L1011 APU's were not particularly efficient at best.