Do you own an original CCV or a production run? There is a difference.
Anything Jose is going to be based on diode clipping to generate the various gain types in a Jose derivative amp. This is found on the CCV and any Jose style amp. While the Atomica was based on this as well, I don't think it is a shining example of one.
Aldrich and Old Bitch and anything like that, are all tube gain in structure and are totally different.
Most Jose mods will use what voltage is available from the donor amp. In a Marshall, you are looking at around 450-470. Jose's original designs boost the PV up into the mid 500''s. Mark's original CCV's run around 540-560PV to replicate that.
Original Jose's also used two gains and two volumes for contour, in addition to the Jose master. There's a lot of control with these 5 pots over the tone and definition. This not easily replicated by a garage hack on an amp with a single gain, a bright switch and a master volume.