Ordered a 39C and some proraso pre/post from Con naught shaving in the UK on Wednesday and it arrived today (great service - especially the free blade samples thrown in!).
My routine was.
Without a doubt the best shave I've had yet. I had issues with the Merkur Progress but this is a different experience. No niks or blood in the sink just a close shave.
My tip for using it: It's all about the angle, find the right angle and keep it constant.
Top of the range shave that.
The Pre/post has a nice effect too!