I have made a new spreadsheet that can be used for both NHL and MLB, plus reused going foward in future seasons.
I will be using a form of this spreadsheet. I will notice any problems right away and I can fix it.
I have stopped the power ranking systems and have concentrated solely on GSGA for NHL and RSRA on MLB, plus the parlays for the same. I have backtest results on the spreadsheet for NHL and this winter I will be doing the same for MLB, done before 2019 MLB season has started. I will update the sheet then.
NHL starts on Oct 3rd.