I'm not at 252 shots up on airliners.net, 154 of them are from the K20D, 48 are from the K10D.
My latest upload netted me 9 out of 15, here they are.
Number 252
Continental Express Embraer EMB-145LR
F8.0, 1/2000th, ISO400, 220mm, EDR, Sigma APO 100-300mm F4 EX DG
Photos: Embraer EMB-145LR (ERJ-145LR) Aircraft Pictures | Airliners.net
Number 251
Air Canada Airbus A320
F8.0, 1/2000th, ISO400, 138mm, EDR, Sigma APO 100-300mm F4 EX DG
Photos: Airbus A320-211 Aircraft Pictures | Airliners.net
*****NUMBER 250!!!*****
WestJet Boeing 737
F8.0, 1/2000th, ISO400, 100mm, EDR, Sigma APO 100-300mm F4 EX DG
Photos: Boeing 737-8CT Aircraft Pictures | Airliners.net
Number 249 *Note not EDR
Air Alliance Beech 1900D
F11.0, 1/200th, ISO100, 125mm, Sigma APO 100-300mm F4 EX DG
Photos: Beech 1900D Aircraft Pictures | Airliners.net
Number 248
Air Canada Jazz Canadair CRJ-100ER
F8.0, 1/1000th, ISO200, 110mm, EDR, Sigma APO 100-300mm F4 EX DG
Photos: Canadair CL-600-2B19 Regional Jet CRJ-100ER Aircraft Pictures | Airliners.net
Number 247 *Again no EDR
Air Canada Jazz Dash 8
F8.0, 1/400th, ISO100, 100mm, Sigma APO 100-300mm F4 EX DG
Photos: De Havilland Canada DHC-8-102 Dash 8 Aircraft Pictures | Airliners.net
Number 246 *Wonderful angle due to the slight banking angle
Air Canada Jazz Canadair CRJ-200ER
F8.0, 1/2500th, ISO400, 220mm, EDR, Sigma APO 100-300mm F4 EX DG
Photos: Canadair CL-600-2B19 Regional Jet CRJ-200ER Aircraft Pictures | Airliners.net
Number 245 *another shot without EDR
Air Canada Jazz Dash 8
F11.0, 1/250th, ISO100, 100mm, Sigma APO 100-300mm F4 EX DG
Photos: De Havilland Canada DHC-8-102 Dash 8 Aircraft Pictures | Airliners.net
Number 244 *The Big Triple 7
Air Canada Boeing 777-333/ER
F8.0, 1/2000th, ISO400, 100mm, EDR, Sigma APO 100-300mm F4 EX DG
Photos: Boeing 777-333/ER Aircraft Pictures | Airliners.net