clone yung pinapagawa.. hindi "dumble".. only dumble can make a dumble. whether the result cops the characteristics of an actual dumble is besides the point. when you are asking for a clone, you are asking for an approximation of the original. since it's an approximation, the result will most likely not be equal to the original.. if it is, then it's your lucky day!
assuming schematics was verified to be from a dumble amp, and you follow the schematic down to the last value, the result should not be that far off. you cannot clone a fender with the sound of a boogie. electronics is more science than art. magkakatalo na lang sa tolerance level nung mga parts na ginamit.
the purpose of having a clone built is for the end user to have an idea and experience what the original may sound or look like, then use it for whatever purpose he deemed right.. if i'm asking for a perfect result, i'd hunt down dumble (if he's still alive) and have him build me one of his amps at gun point.. i'll pay after
kung ang dahilan lang ng builder kung baket ayaw nya gawin yung clone eh dahil di pa nakakaexperience ng original dumble yung kliyente, eh sinasabi nya na dapat di gumagawa ng clone coz it's highly probable na yung bumibili ng clone eh di pa nakakaexperience ng orig.
for me the reasoning is bullcrap