As for the article, those loads look to be in line with what I have used over the past 25+ years or so shooting mine.
That said, you should just do yourself a favor, start on the bottom and work up looking for accuracy. Once you get your accuracy, the rest, is what it is. You may or may not ever equal or exceed any of the loads listed, but if your groups are 5" and could be 2" which would you rather be shooting at something with ?
I hunt with mine and as such I usually find most of the middle to upper end loads to be the most accurate in my Redhawk. However with lead it can be on either end or the middle.
My favored jacketed load uses the Remington 200gr SJHP on top of 20.5grs of 296 lit with Win-WLP primers. It averages around 1375fps and has cleanly taken several 100# plus hogs out to 100yds, and a whole bunch of them out to 50-75yds. It is very accurate and doesn't have much recoil at all.
If you get caught up in chasing velocity your going to miss out on a LOT of great shooting loads. Yes you can get some good velocity out of the 41, but it usually comes with added cost. With my BH I was running some pretty stiff loads. They shot well, but they kept shaking things loose on the gun. The main one was the retaining screw for the cylinder pin. It would loosen up and come apart, then the pin would slide out in my holster, and when I would draw the pistol, the cylinder would fall out on the ground. I tried everything imaginable short of welding it. Then I got a RH. Several years down the road I learned what I am passing along to you. Just load for accuracy and if you need more use them sparingly, or get something bigger.
I'm not trying to persuade you to not load to the upper end, I'm just passing along what I have learned with shooting the two I have had. Yes the big boom is cool, but putting all 6 rounds into a tiny cluster at 25 - 50yds is way cooler IMO.
One last tip, don't get hung up in trying to crimp the case neck into one piece of metal with the bullet. Your not going to need much more than to simply roll the lip into the groove on most loads. Start out with a light roll, shoot all but the last round of the cylinder, checking it after each previous shot. If it grows in length, you need more crimp. If not, shoot another 5 or more checking it as you go through. Once you find the happy spot, leave it be, and you will find your loads to me a bit more accurate. This isn't to say you don't have to put a tight crimp on them just don't over do it. Here is a good example,
.41 Mag Association - Post 473
Also while your there look in the top right corner and click on the link to the whole thread. Plenty of info there for your 41.