i've been marginally happy with my results. I don't dislike my beer, but it could be better. And i don't know if that comes from aging slightly colder to tame certain flavors, or if it's my recipes, or my process due to losing a lot of sugars. I think you're right, i probably need to stop stressing over taking readings during the brew day like conversion, and pre boil, and all that. Just take 1 reading at the end of the day, and subsequent readings when primary ferm is done, because i have in the past hit my projections, and those were enjoyable batches. and the only thing done on that was lift the bag out, sparge rinse with my tea kettle until the boil kettle gets to 3 gallons.