I now have 2 months of transactions to report on. All dividends were correct, a few sales with single penny costs reported correctly. I have only had 3 mistakes (beyond the initial setup isssues previously discussed). The first is that schwab makes liberal use of SWGXX as a cash proxy. A small 3.11 dividend during brief ownership was reported as zero… likely because the trades in/out of SWGXX are not reported as asset ownership and don't show up in the portfolio. None of the trades in/out of SWGXX are reported either. The statement does not report such either as it is considered identical inside the account.
Second and third, I had two mandatory mergers in October, Activision and Horizon Therapeutics. In both cases the cash showed up and the portfolio went down, but it was not registered as a sale. I can supply a screen shot of how the transaction differs from a usual trade if there is interest. I just edited the zero sale transaction to be an actual sale, and it worked fine.
Again, please don't treat this as feature requests, I am just reporting on issues with an account that would be impossible to track in any other manner due to the 1417 transactions in 2 months. Quicken has always struggled with mergers and spinoffs in my accounts, but this kind of account is more exposed to such issues as result of high number of positions and exposure to replicating entire SCHK index with individual holdings.