Hey there vitabooks,
Welcome to the Community! I'd like to help point you in the right direction concerning retirement setup for your company.
I found an article for you that may explain an easier option for setup. I know you've been doing a lot of research but hopefully this is a new alternative. You can check it out here: https://community.intuit.com/articles/1437364.
Regarding the check amount being multiplied, I would suggest calling in to speak with an agent. A phone agent could do a screen share with you and has the necessary tools to help locate what is throwing those numbers off. Desktop phone support can be reached at https://help.quickbooks.intuit.com/en_US/contact.
Please let me know if you have any other questions.
