Personally tried Silverback , SMC (not approved version) and TP, my experience is :
TP > SMC (not approved) > Silverback
Tried 5 packs TP 60c and 70c , so far no "fat" and performance is nice.
Tried 4 packs of SMC 60c, all of them have little fat but acceptable (for me).
Tried 8 pack of silverback 50c, all of them became fat boy.
all above batteries did not have over charge or over used and keep on storage mode after played.