I've been flying with a few new guys lately who were unaware of being able to adjust your views from the cockpit, to make seeing the enemy easier.
Heres how I have mine adjusted.
Lets take a Spit5 out to the runway and turn off the engine for peace of mind.
This is the default view looking forward:

While looking forward, press and hold the down arrow until it makes the cockpit stretch out away from you as far as it can go. Now press and hold the Page Up key until it raises your gunsight dot (pipper) so its just at the border of the gunsight glass.

Some people actually mark their moniter with a marker pen on the pipper, then adjust the Page up view till it disappears, but leaves the ink dot in its place on your moniter. This gives a great view over the nose.
Now while you have this view, hit the F10 key to save the view. Now whenever you are in a Spit5, you will always have this forward view.
New Forward View:

For the Rear View:

While holding the 2 key on your number pad,press and hold the Page Up key to make your rear viw zoom way out. Now press and hold the left arrow on your keyboard to slide the view to one side. Hit the F10 key to save the view.

This will give you the best 6 oclock view so you can see enemies sneaking up on you.
New Rear View:

All the views can be adjusted this way. Don't forget to include the views while holding the 5 button at the same time and adjusting those views as well.
Example: High right wing view= 5, and 6 keys on number pad at the same time.
Now you have the Spit5 done. Do all the planes you fly the most at first and go back and get the others later. Get up and try it out. If you never did this before you should see a huge increase in your situational awareness, and ability to get deflection shots on the enemy planes.