Update
Got used in A1 shape CP Pro , have 5' x 10' floor space to work with 1st 8 or so packs practiced with Radd.... Added training gear some hovering at 3' --- what a sensitive rig....
Flown 21 packs in 7 days , slow and steady,
Batteries discharged down to 10.7 volts or so before I recharge, let cool down 1/2 hr prior to charge.... Average charge time 1 - 1 1/2 hrs . Fully charged .... charger shuts down somewhere between 12.4 and 12.5 volts....
I used a meter to measure the voltage every 10 minutes or so and have plotted a charge curve, this then has allowed me to check where I am with respect to charge time remaining, by measuring the voltage..
Also, if there were to be a problem I would pick it up during the charge cycle.....
All stock motors, and stock 800mah battery still working fine........ Average run time slidding on floor and hovering is 10 to 15 minutes.....

Who knows maybe I won't need this new Tail motor

For new tail motor I've ordered the following all from allerc, shipped same day...
2 x EP3020 PROPELLER (EP3020)
2 x EP3030 PROPELLER (EP3030)
1 x GWS EDF 40 H with 1630 x 6 rotor blade (EDF40H)
2 x GWS DRAGONFLY HELICOPTER PINION GEAR FOR TAIL MOTOR (M0.5*8T*4L- (HELIPNGERM10)
1 x ELECTRIC POWER HEAT SINK FOR CN12 MOTOR (EHS-12)
Pinion gear should give me the option to contiue to use gear drive tail
ordered EDF40 H , felt that that would better my chances of receiving the proper motor...

Whacker