Vince - I saw in a Reddit thread you were looking for a reference regarding items being heavier than "heavy". That comes from the loot tables in the GM guide. You can potentially roll for items that count as 3, 4, 5, 6, 7, and 8 slots. They are referred to as Heavy (3), Heavy (4), etc. I think it would require the strongest of characters to be able to carry some of these items. That or put it on a mount. But with talents like a packrat, it is possible. As for rollable crits, I managed to accomplish that by just building a few rollable tables. It took all of an hour. No biggie. Now they are just a button click away. Personally, that isn't something I think the sheet is lacking.