gillybob I suppose there would be no harm in using the cola method in the slow cooker, might give that a try.
Teetime I have been known to soak mine, change the water then cook, but not change the water a second time, sounds a right faff!
Here is the way it used to be chez Phoenix!
Cursing The Gammon:
Start by getting out all of your biggest pans and finding that none of them is quite the right size/shape for the meat. Apply your first curse. Then you set it to boil on your newly cleaned hob, and wait for the spitting and splashing to begin. You can now curse again, even if you haven't rolled a 6.
You then realise that you forgot to make a note of the weight for timing purposes. Rummage in the bin for the wrapper and miss two goes. Now experiment with different positions for the lid in an attempt to minimise the splashing. Have another curse when you realise that none of the positions works. Say to anyone within earshot that it's the same every year, and why on earth didn't they remind you of that when you bought it. (Deflecting blame earns you an extra 10 points and a small sherry).
Realise that you forgot to set the timer, and try to estimate how long it has been boiling so far. Don't worry too much about accuracy; you are bound to be wrong. Apply an extra 30 minutes to be on the safe side, miss one go and have a sherry. After an appropriate length of time, drain and leave to cool. Award extra points if all of the water goes down the sink, but miss 2 sherries if any goes either on the draining board or your feet.
Cover with something to protect from cats (extra points available if a colander will actually fit over it, but deductions if you have to deploy either a tea towel or tin foil).
Apply final curse and enjoy