Kevin and Chris make a good, oft forgotten, point. Several years back Neuro-Longuistic Programming highlighted a truism, but neglected, issue. Given 5 senses, each person has his own individual ways of being "accessed" for learning. For some the circutry favors visual learning, for others tactile, others hearing etc. Then there are the different combinations of these which comes first second ,third etc.? One can get a,b,c,d or a,c,b,d, or a,c,b,d etc.and that is only using 4 of the 5. So is there any BEST for each individual in the universe? My own preference is more and more in this direction: not to purchase any effect that I have not seen first or can be seen on tape. Maybe that is NLP programming, maybe it is just that advertising words cannot be fully trusted (as Stewart James in 'Open Prediction' history knew well). Jon Townsend's experience is similar to mine; "is THAT what it really looks like?" Much easier.