stretching goblin black nitro to 700 Blade???

[Grittner]

Hello im stretching my black nitro to 700 and don't know what blade, i do basic 3D and sport big air stuff, here are my option, what will you recommend and i will buy matching tail brand of 116 or 115mm

Synergy Rail
696 or 716
Cyclone
695 or 715

[ticedoff8]

I changed to a 3 blade head and 3 bladed tail on my Trex 700N
It is awesome

I bought from Zeal. I like their blades. And, they have 3 packs
If you send them an email, they will package any of their 2 blade sets into a 3 blade set for the cost of 1 extra blade

I did this for my Trex 600E (600mm), Trex 600N (550mm), Goblin 380 (360mm) and the Trex 700N (690mm)

I use the 3 bladed tail on all my three Trex helis.
And I use the 3 x 105mm for the Trex 700N, 3 x 95 for the 600E and 3 x 90mm of the 600N (w/ 550 mains).

I think the Goblin 650 Black Nitro uses a higher gear ratio for the tail.So, I would expect the 115mm to be about right.