It would not be worth suffering for 3 days, to do sub for a ski-weekend, and then get back on methadone
Try to find something like hydrocodone
or maybe oxy, just keep your goddamn doses low and your nose clean. Also watch out for large ammounts of apap& all that typical ****.
These opiates are short lasting, will avert Methadone withdrawals, give you your painkilled energy for the day and if you keep the dose low, won't get you thinking about binging/getting ****** up.