I have seen investors that can do value adds significantly faster and cheaper than I can. 

In 2008, the growth was fueled by the availability of bad mortgages.

@Nicholas Kitchen as @Lance Lvovsky said a cost segregation study will help expense some parts of the property faster, but since you will most likely be limited by PAL rules you won't really be able to create losses to offset your W-2 income as @Eamonn McElroy noted. 

This would make the process (turnover) much easier/faster but I feel you then loose that experience.

While we are doing just fine relying only on cash buyers, I feel the sales and project absorption would be much faster and frankly at a higher price point if we had 25% down financing and reasonable amortizations of 20 - 25 years.

Should I pay down the 5 year note faster, to get a $500 positive cash flow on the property, so a $900 swing? 

Add to the mix cheaper and faster construction methods and you have the beginnings of a bubble.The graph below illustrates Robert Shiller’s data.

Goals help fuel the passion.

The BRRRR is made to scale quickly, so even though your cash flow will take a hit, you will get your money back out of the deal so that you can pursue another deal faster.

Usually they want you to fix it up as fast and efficiently as possible so it's off your hands faster.