Obenaufs is a very heavy oil, I wouldn't use it on dress calf, only tougher workbooks and such. It attracts a lot of dust and dirt that can act like sandpaper in the creases. Also it just smothers the leather. You need something lighter than absorbs, not just sits there. Also, good luck getting a shine after smothering your shoes with obeneufs.
Actually Obenaufs is the only other thing I really use - but agree, it only goes on work boots, and not even all my work boots at that. The stuff is really sticky and attracts dirt, which causes all the problems PB mentioned.
Well the cheap stuff is by far worse, but the fact is the quality of calf has declined because of the hormones and grains they pump into cows, furthermore the demand for high quality leather isn't what it once was. So, now we have fickle leather.
I only use wax on the toe and heels. It is prone to build up and cause cracking in areas that flex like the vamp. My vamp only gets cream these days. If you don't have a good build up of wax on the toe and heels of your shoes it will take many layers of applying, drying and buffing to get a really good shine. So to answer your question about 3-5 minutes works and then go back to them after 10 sometimes a buff after it sits and the solvents dry more you can raise a better shine.