As members of this board I'm sure all of us lust after "long lenses". Many of us are fortunate enough to quench that lust. Now there must be a number of us out there that have just moved up to long and fast glass and find that their skills are not just up to the task of getting the best performance form these lenses. I admit to being one of them. Practicing the craft of photography for the past 40 year my experiences have been very limited with large telephoto lenses. I'm sure that there are many others out there in the same situtation. Perhaps we might continue this thread with those who have experiences and the techniques, tricks, procedures that have proven to improve long lense skills. I apologize if this subject has been disscussed before.