WRAM - We dedicate our hearts,minds and bodies to protecting our great Republic!
What he's referring too is balancing the scale between training sessions and combat situations.
It's a string of reasoning employed by the military. For instance, if I was going to be evaluated for a PT test, I'm not going to be evaluated for runs on the treadmill in a nice warm gym but out on the cold hard concrete. Get my drift?
Just as you wouldn't want to consider yourself prepared on the basis that you can shoot at cardboard targets that just sit there all day and you manage to hit them every 5 shots, as opposed to moving, breathing and bleeding targets who may be extremely intent on killing you as you fire shots.
What Badger is saying is keep your training in line with realistic scenarios as much as possible. Do not go in expecting any more or less than what you absolutely must. In summary, he's saying train with a weapon that is combat effective and something that either is modeled after tried-and-true circumstances in the military and police sectors or is the authentic version of that type of weapon. If you train with anything short of this standard, how can you expect to execute proficiency when you'll need one in the long run? You can't.
Still best if you found out a way to know how to coordinate/synchronize those accessories and the weapon itself when and where it counts. Ya never know...
It's not just a test for yourself, it's also a testing period for your gear and weaponry.
Make sure everything is working the way it should.
You will find out that certain things in ALL of your equipment need adjustments, fine tuning and maybe different accessories. You learn all of these things while using that equipment.
I used to have an FAL and at the range I thought is was the baddest ass weapon ever. When I took it to the field and started patrolling with it I discovered I it was a real heavy pig especially with a sniper scope and 30 rd. mags. I also discovered a problem with the gas adjustment being very finicky. I sold that pig and got an AR-15 instead.