We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
One can certainly move heavier weight with the Trap and, for lower body strength, that's the most important thing. He also says that the Trap deadlift combines aspects of squat too. It does, but is not a substitute for squats.
For what it's worth, I switch from Trap to bar every once in a while, if only to keep it varied and interesting. (Unlike Mrs. BD, I hate deads - which means I need to do them.)
The only wisdom I can impart about the essential Deadlift is to use correct technique, and keep the weight high enough that your max reps are 6-10. With those large muscles, it's not a high-rep game.
I switched to the trap bar when I turned 48 and started getting low back pain after deadlifting at L-S1- and yes my form was fine.
The hex bar eliminated the pain and my numbers went north of 300. I recommend it to everyone I can. You only have one back in this lifetime- The hex bar maintains the strength that comes with deadlifting while eliminating the risk. My back's never felt better.
I switched from barbell deadlifts to trap bar a little over a year ago. I find it easier to keep good form with the trap bar. This is my favorite exercise, meaning that I definitely know it is having an impact.
My shins definitely like the trap bar better!
Due to a shoulder injury I have trouble with squats (can't position my arms correctly to hold the bar) so this helps a little to compensate. I'm still looking for an acceptable squat substitute.
As my father-in-law once said: Getting old doesn't have much to recommend it. Except that it beats the alternative.