I'm using TurboTax Premier on a Mac and hit this limit this year. I tried doing the process of grouping 1099Btransactions idea and planning to mail in my 1099 which ran to 100 pp. Then I tried creating a new Return and before I did anything other than adding personal information and saving the return. I tried downloading from the brokerage and it was slooooow, but it worked. Now I have a return with all the info downloaded and I could start backfilling data. I completed the 2 returns in parallel, since the "no download" return has the linear information from 1996 to now contained in Turbotax. It was tedious, but it worked. The worst part was how slow it was to save but then I'm running a 2013 iMac. In the end, it transmitted the return with the brokerage download just fine. Hope this helps someone else who runs into this limit.
