Thom,
Use the Castrol Super Clean straight from the bottle.
Make sure you wear surgical gloves when you handle it because it can remove skin if left on too long. If it is a small part then soak it in the CSC, but if it is larger then you will need to pour it on a spot, let it sit for a few minutes and then scrub it with an old toothbrush or something. It is pretty potent stuff for being biodegradable.
In regards to modeling clubs, no I do not belong to any.
Mike
“Wisdom is the right use of knowledge. To know is not
to be wise. Many men know a great deal, and are all the greater fools
for it. There is no fool so great a fool as a knowing fool. But to know
how to use knowledge is to have wisdom. " Charles Spurgeon