I have never been a fan of the BWRAF. Seems too random of a way to check your gear.
Begin in the water with a Bubble Check. If you have bubbles - get out and fix your gear. You should not begin a dive with the mental burden of gear issues in you head.
As a cave diver I use... Right to Left. Front Top to Bottom. Back Top to Bottom.
As an example...
Right arm - nothing.
Right upper D Ring - Spare Regulator - GoPro.
Next is My Regulator hanging over my right shoulder - I put in my mouth, face in the water, without a mask on, and breath it, I am expecting it to breath easy and dry. Great opportunity to practice breathing without a mask on.
Drysuit inflator. Check that it fills.
Left Upper D ring - Light, I turn it on under water and look to see that it works and I show you that it works. I have my Pressure Gauge clipped off also, and announce to you what my pressure is. Above on the strap is my Line Cutter. I will show it to you so you know what it is and how it deploys.
Inflator/Delator. I fill and Dump.
Shoulder Drysuit dump valve. Check that it is set correctly.
Left arm - Computer is on and set to the correct gas/air. Compass direction out with it marked for the direction out.
Now its your turn...
Followed by anything in your lower front. Weights in pockets and secured. Drysuit pockets Spare mask, emergency spool, wet notes, surface marker, etc
Back... Valve is 100% open. anything clipped off on your butt area etc.
Notice that I didn't mention shoulder straps adjusted - waist adjusted etc. Divers have different gear - Jacket style vs back inflate BCD's.
As for the solo dive - I dive in caves solo - but I dive sidemount (two completely independent sources of gas/air) and usually a stage (again completely independent source of gas/air). Think about a failure at 20 feet of open water - vs - a failure at 80 feet of open water. For me a failure at 20 feet and I can go to the surface - but at 80 feet - a buddy - or a second source of gas/air to breathe would make a huge difference. If you are going to solo dive then Be Smart.