Must agree.
My bestest ever was also after a late day-night run.Couldnt do it now(about 27 then) but it was the best IR renewal ever flown and in a helicopter inreal IMC ! Afterwards i was given a pat on the back,told to go home to bed and NOT to do it again.I haven't and wouldn't but oh to be youngish again !
And as for the state of the other two guys........
On a serious note rember the 6 p's
Prior
Planning
Prevents
P**s
Poor
Performance
Center radial scan based on the AH works for me and its what i have thought my students,hopefully with some success.Practice your partial panel,you never know when you might need it.Try using a sim on your pc.I find it handy if only to help visualise where i am on the approach before i sit a test.And alway try and plan ahead,be aware of your limitations(personal and aircraft),think outside the box,use all your resources (ie your useful if a little slow co-pilot - might be the only chance you get to make the IRE do som work for you !
And enjoy it.Instrument flying requires a lot of self dicipline but it is an art that can be learned,perfected and enjoyed.