Well I did the partigyle today. I took a look at the spreadsheet but ended up just going by experience. The brewing session was surprisingly easy since I had a second burner and a friend helping out. Actually I surpassed my expected gravity numbers. The DIPA was supposed to be 1.078 and came out to 1.082 and the Blonde was way over at 1.056instead of 1.045. I really need to buy a refractometer so I can make adjustments on the fly a little easier. Really enjoyed the partigyle though and look forward to doing some more.