Lookyj,
Yep a dilemma,, It wasn't me about the S60 Servos.... The S60 servo was designed for the CX2.. Looking at the main frame, there is now way to move the servo back...Hmmmm. THINKING......... A radical thing to do, is with a dremel cut-off wheel.
Cut part of the motor housing off. Or, stick with a S75 in the front, however, I don't like the idea of having two types of servos.

HS-55's, are the way to go on the Blade.. Wiring mod with the stock TX, Servo reversing with the DX6/7 or any programmable TX.

Unknown....