Dana Header Install Completed - Need thoughts from those with experience

[Singleton]

OK, so I finally had the Dana Headers installed (WOT Marine and I forgot to take any photos when I was testing - will do that next time).

Adding basis data
Engine = 496HO
Gears = 1.5
Limited = 5150

Prior to the Dana Headers, I ran a BBlades Bravo 1 26 labbed prop - results from testing in April 2013 in Havasu (5125rpm; 65mph).

Yesterday in Havasu I tested with a stock Bravo 1 26 (4800rpm; 70mph). Never was able to spin the 26 above 4800rpm. Getting on plane with the stock 26 was very easy (less then 5 seconds). Could not get above 4800rpm.
Saturday at Lake Elsinore, tested a Hydromotive (I think, part number HCCL27R) and got (4650rpm; 67mph); however getting on plane was a PIA and blew the prop out unless heading into the wind and had to be easy easy on the throttle. Testing with this prop was to make sure everything was installed correctly and no leaks, so I am not really counting this test, but listed it to give additional data.

So more testing needs to occur. What would be your next steps?
Time in Havasu is limited between now and DS so I need to get a plan in place and all testing props in hand prior to my next trip.

On the plus side. Mid range accelerations was greatly improved and the bling factor kicked ass as well.
Also WOT made the installation look very easy