Here's a spreadsheet I made of an actual Sling 4 shipped from the factory in South Africa. Click the link and play with the spreadsheet, if the 5 cells are green, your W&B is all set. As other people may play with it feel free to make a copy of the spreadsheet for your own use.
>>> Please note that this is NOT to be considered the official W&B of any aircraft and you should refer to the factory and your own aircraft's W&B for actual calculations.
My Example Sling 4 W&B Spreadsheet
