Chuck, Barracuda and CG pretty much covered all the bases. I use them both and I even mix them in planes as required. For most sport pilots flying there 4*s you would never notice the difference, I was even using them in my 60 size Kaos. The digitals hit the market and started getting the big hype about 8 or 10 years ago, before that everyone used analog. For most pilots they are not needed but they do work as advertised. When I buy servos today they are all pretty much digitals but I don't buy into the hype about needing all that power {money} because most planes don't require a 100 lb. aileron servo. A lot just depends on the plane.