The main problem for this wing type is the high sweep wing. Chord différence between root and tip is usually reasonnable and you should not encounter  any cutting speed related problem.
To demonstrate this type of cut, Laurent Chef has realised a Froustey.  This model has been described in "Modèle Magazine", Mai 98 issue.

Here are the main characteristics of the cut: 

L1	Half wingspan	550
C1	Root Chord	270
C2	Tip Chord	180
F1	Root forward shift	150
H1	Wing tip dihedral	xxx
	Root airfoil section	MH60
	Tip airfoil section	MH60

•  The block is setup upon the table for trailing edge dessing up. Notice the table grid for easier block positionning. The trolleys has been shifted , as a function of the sweep.

 The bloc has the correctt dimensions (LA and TA). The cut can begin. Be carefull: you have to extrapolate the root and tip chords so the X trolleys displacement lead to the desired move at the block level.

 Weights avoid any block move during the cut operation.

 Here is the result. The trailing edge is straight, thin and regular, which is sign of a good cut.

  Every parts are reinstalled together and we use the vertical cut to align the root of both wings.

Same operation for wing tips.

  All parts are glued together (not the advertising paper!).

 and we are filled with admiration for the final result...

• Another example of the same foamie type, seen around Gex.

For fans,  here is the cut file:
 

Other examples are available from  J.F. Delhove's site:

• Building the Drenalyn fuselage:     http://users.swing.be/jfdelhove/drenalyn.html
• Other examples:                                   http://users.swing.be/jfdelhove/realisations.html