The Mojo wing is thicker than the Primo so has a lot more drag. both will fly just fine in the wind with the Primo being a bit easyer to land.
My Mojo has removable wings and a Saito 91 on the nose, hovers just fine with plenty of left over grunt for pull out. All CA build
Primo 40 has been re done from glow to electric. Picked the power system to get the same all up weight. Currently running around 1200 Watts on an APC 15x6 prop 6S battery.
On the Primo unless you want a CG set really far back build and cover the wings plus tail parts then test assemble, most find the tail servos need to be moved forward.
The Primo will fly fine with the CG @ 5+" back but will drop it's tail when you cut throttle. Some fix this with a switched throttle to elavator mix tied to throttle position.
For a "first" 3D 60 size build the Mojo and beat it to death then build a Primo. 3D with the Mojo is slow motion so you have lots of time get things right. With that big thick wing it will fly super slow and still respond well, that will build your skills fast as it now is really easy to get low and close.
I am "flashburn" over @ the brotherhood, lurk there a lot, going with an electric Lam Yak for the next build
Currently flying
Mojo 60 glow
Primo 40 electric
"Q" Katana, Skeeter 30 and 36, KX2 all electric all sadly currently unobtanium
"Spaz" Sabre electric, fave plane right now
"3DHS" Sukhoi electric, what the hell was I thinking "least fave plane and the most spendy"