Yes...great post centaurus...always something valid and interesting to say...re the VSI it's also invaluable when doing min weather (or any other) circuits...selecting flap just before base and pushing the nose down using the AH will only help so much...the scan has to include the VSI to get the real picture for rate of descent...otherwise you may find yourself flying straight and level with no descent at all, or worse still climbing/ballooning as the flaps are going down...the somotagravic effects are very real and are deadly at night...have experienced it taking off and landing into flared strips in the middle of nowhere during my time flying aerial medical...seems to me the only effective bulwark against it is a good scan which needs to include the VSI...