What's sort of ratio are we talking kind sir?
The most important part is deciding how much you need to expand the leather. If the shoes are tight in the front, but OK at the back, then you only need to expand the front section. If they are tight from front to back, then obviously you need to expand throughout.
So,,,, 50/50 is what I used. 500ml of water and 500ml of metho. Put it in a bucket and then put about 20 sheets of newspaper in. You should have a cardboard moulded insert in the shoe when delivered, throw that in as well. Let the cardboard become moist but not overly wet. Wring the paper out so that it is wet but not dripping. Put the inserts back in and then force the newspaper down into the shoe, stuffing the whole thing so as is cannot take any more. Put the shoes in a corner somewhere and leave them for a day or so. The newspaper will slowly dry out, but it will keep it's shape, hence the leather will stay where it has been pushed out to. You can either take the newspaper out when it is semi dried and check for sizing, or just leave it and check it at the end when the paper has dried out. If it does not work the first time. do it again. It will force the leather to expand and you will have some comfy golf shoes.
I first mistakenly bought a 10. No good and gave them to Zooey. Bought a pair of 11's, found them a tad tight at the front, did the above and I now where them like slippers. Have since bought another 2 pair and repeated the process. Hoping I won't need another pair of golf shoes for some years to come.
Edited by The ComMuntish, 04 March 2015 - 09:41 PM.