I've recapped all three pair of my Altecs with Solen caps over over a year ago. In a recent thread AB mentioned that he was having a pair of Model 19 crossovers recapped with Sonicaps. AB, can you let me know how those sound compared to the Solens--I know you have used those too? Are they brighter or different sounding in any way that you notice compared to the Solens? Have your Solens "burned in" or changed in character that you can tell since installing them? Has anyone else who's used the Solens noticed any change in their sound after using them for a length of time as far as "burn in"? Anyone have a favorite capacitor they'd like to recommend for crossovers?