The dynamic effort method was very effective in the original westside barbell before even the very ineffective blast shirts existed. DE work seems to work well for equipped lifters because Westside, where DE work is done best, is mostly a multiply gym.
I am a raw lifter and I find use in it, especially with accommodated resistance. At the worst it keeps you doing the competition lifts weekly in a range that is optimal according to prillipen's chart so you can still get volume in on your big lifts for improvement of skill and technique and keep yourself from becoming slow. At best it improves your explosive strength, is a good tool for peaking (if you use the right cycles), and helps you with your sticking point/weakness.
I recommend accommodated resistance, I recommend heavier bands/chains and lighter (straight) weight if you have top end weaknesses, and more straight weight and less bands/chains if you have a bottom end weakness.
The basic cycles for a 300-400 pound bencher/400-500 pound squatter is
Squat: 60/63/68% with straight weight (feel free to do 60/65/70% if you do straight weight) or chains. Chains=80 pounds up top, performed off of a parallel box
spd strength: 52/55/58% against about 100-120-ish pounds of band tension (double cinched lights or single cinched averages off of a 3x3 base works well for this), str spd A: 25/35/40% against 200-250-ish pounds of band tension
You can also go off of a low box, do them as free squats, or pause. The above cycles work okay as free squats, you might want to bump up the weight slightly or do them paused if you opt for free squats. I like to do them off a box because DE work beats up my knees and hips for my squat style. The above cycles are guide lines, never do str spd cycles back to back, always follow it with a spd str cycle or maybe even a chain or straight weight cycle. str spd week 1: 6X3, week 2: 5X3, week 3: 3X3 then go work up to a max/near max without missing
Bench cycles: this is the fun part
The most prevalent recommendation is to do flat waves, I have no experience with that. Ideally you don't want to ever get more than 70% at the bottom and 85% up top unless you do a heavy band/chain cycle or circa max.
The most common way to cycle these is to adjust accommodated resistance and what type of press you do. This is based off of your weakness.
Generally speaking the basic straight weight 60/60/60% (may want to raise the weight up to 65%, I haven't had a chance to try that cycle) or 60/60/60% with 40 pounds of chains, or 50/50/50% against doubled minis will always work regardless of your weakness. Band cycles are good if you need to work on lowering the bar faster, chain cycles are normally good for stability/normal accommodated resistance, and straight weight is more practicing your technique and letting your shoulders and elbows recover from bands (chains work well for this too).
If you are weak off of the chest:
Floor presses with the same percentages as the bench cycles, take 5% off if you feel slow
single board press 55/55/55%, you can use chains and bands if you want just take 10% off for bands and possibly 5% off for chains
normal bench cycles
If you are weak mid:
normal bench cycles
floor press cycles
fat grip chain cycle 45/50/55%
fat grip band cycle 40/45/50%
If you are weak at lockout:
This is the fun stuff
normal bench cycles
heavy bands 30/35/40% against doubled monster minis or old worn out doubled light bands (god help you on this cycle) 5 sets of 3, you are going to want to work up to a heavy weight on the second week and a max (without missing) on the third day
heavy chains 40/40/40% against 120 pounds of chains 5 sets of 3 same deal as heavy bands
circa max (peaking, prob don't need to know this cycle)
fat bar cycles
Everything past the floor press and normal bench cycles is credited to Dave Tate's bench manual. I've gotten good results just from straight weight/bands/chains waved like you would squats, but the above cycles should be good. Everything except the circamax and heavy accommodated resistance cycles are 8X3 for bench, and 8X2 for squat.
There you go, my take on DE work and some cycles. If you see percentages mentioned for a cycle, it is probably referring to the equiped max so you need to add about 5-10% to it so that it works for you.
BTW I recommend buying the E book I got some of the bench cycles from. It is cheap and has a lot of useful information if you are starting out using these methods (which you probably are), and still has some interesting/useful things if you already know the methods decently. Generally speaking the ME, DE, and RE all feed each other. If you get stronger, then you can move more weight faster, and if you can move that weight faster then you can lift more, and you need the RE method because you can't flex bone and to address weaknesses/keep your joints and muscles healthy.
Train hard, optimally, and most importantly, smart.
One last thing, bro, but what are your lifts and why are you asking these conjugate method related questions?