I totally agree. Like I said, it's best to review the material and use it as a guideline as written. In the case of wishes used to raise stats, I believe the published material says that each stat point up to 16 is 1 wish each, thereafter each wish is 1/10th of a stat point and should be recorded on the character sheet in decimal form i.e. STR 16.1, 16.2, 16.3 and so on and so forth. Not much need to change published material in most cases, I always say. The only strange part of this is the "11 wishes getting from STR 18 to STR 19." I believe the author means you add 10 percentile strength for each wish and then after the 10th wish at STR 18/00, it takes another (11th) wish to get to STR 19. DMing is too easy (and more fun) when you don't change the published rules much, as house rules tend to just piss people off. I can't tell you how many arguments I have heard because some goofy DM wanted to re-invent the wheel by adding arbitrary crap rules to an AD&D game. Generally, house rules are just that IMHO: goofy. As far as the "word twists", the character must use the wish in character for it to actually be activated, IMHO. There can be no "I wish for STR+1". Though given the rarity of wishes, I consider wasting a wish because someone used their wish out of character to be a bit mean-spirited. In the case where someone forgot to stay in-character when using the wish, I would simply ask for clarification by saying "Yes, but how do you SAY it?". According to the actual spell listing, "word twists" i.e. as if cast by a genie aren't supposed to occur. However "The exact terminology" should be used literally. In this case, it may be best to have the player propose the wish in written form, which is something I have done in the past.