I own both of the triggers you refer to and they are in Rem. 40X long range rifles. The Shilen is an improvement over ther factory Rem. trigger, but not by much. The Shilen has a very narrow trigger compared to the wide trigger of the Rem. and that may just be personal preference, but I do like the somewhat wider trigger for it gives you the perception of being "lighter" even though they are both set at slightly over 2 pounds pull. As for the Jewell, mine is a two stage, and can be adjusted down lower than either the Rem or the Shilen and there is no question it is the superior trigger. Again, the weight of the pull is important, but that is not the most vital thing to shooting good scores. My final stage is 1.5 lbs. and it is smooth as butter, but if I do not exercise "trigger control" I will blow the shot. I shoot only long range 6-1000yds, prone, with micrometer sights and the slightest error will really show up out there on the target face when it comes back up. There is the item of cost, and the Jewell for a Rem. will cost you in the area of 200.00 if you want a safety and would imagine you would want one. (some do not use a safety on a match rifle??) I have a Jewell on my match 15, which also an excellent trigger, so you can guess I am rather fond of Mr. Jewell's triggers. If you attend a rifle match and ask around, you will find many of the top shooters using a Jewell trigger. They are expensive, but they work and last a long time. In closing, I do agree that the standard or 40X Rem. trigger can be used quite well with a little tuning and shot one for years before moving to the Jewells.