Dominant corners aren't important but the dominant corner rant is. You can't win the game all at once. If you are only losing by a little then just nibble round the edges - you don't want to make matters worse. It is called plan 47 because there are normally 46 better things to try, but sometimes it is the only option. Squop mobile winks before piles.
Ramps make squopping easier.
The first wink into the pot should not be a big wink or a nurdled wink - they are more likely to scrunge. There is no always and no never in Tiddlywinks. As in life, so in Tiddlywinks, the outcome is usually the opposite of what you expect. I once played a Jubilee Trophy match against Andy Purvis. It was a rather one-sided affair.