I agree Check Required really isn't much of a flaw. If I may, I can offer a suggestion. I don't know if you have 3rd Edition or not. I have it but I don't really want to use it. I still prefer 2nd Edition. However, the modification to Check Required is one of the few changes in 3rd Edition that I adopted for my next game. The difference between the two editions is that in 3rd, you only have as many ranks of the effect available as your margin of success. I other words, if you have an effect with 10 ranks, you have to make your Check Required roll by a margin of 10 to use the effect at full rank. If you only succeed by 5, then you only have 5 ranks of the effect at your disposal. Furthermore, a natural 1 automatically fails.