It depends on what needs to be done but generally:
-Resize to the desired percent
-Modify all A/B cuts to match foam depth
-Adjust tab depth
-Move tab locations
So far I've built all the plans I have linked to make sure they are pretty close. They usually need a few extra tweaks when you build but they should be 99%.
I can give the Viggen a go but I won't be able to test build it. So you're welcome to use my plans but please let me know if you had to modify anything to make it work so I can make the appropriate changes.
I'll work on the Viggen and will try to get it done in the next week.
You don't have the plane/plans I'm looking for, will you make them for me?
If you've wanted to build plane X scaled to Y but aren't sure of the modifications that would be required then add a comment and let me know what you want to build, I'll do my best to make plans for you.
Did you create these plans?
I don't take credit for the following plans, FT and others have created them originally. I've just re-sized, adjusted tabs, A/B folds, and made other small adjustments to make them scale properly.
The electronics you recommend don't match what I've seen others use, what gives?
The suggested electronics are just my opinion, other options will work. I have tested the exact or very similar set up to what I've suggested but if you have questions about a different set up or how a plane will perform with a different set up please post a comment.
Do I need to know anything special before using these plans?
The plans are not perfect and some slight tweaks may be needed. If you have to alter any plans to make them work let me know and I'll adjust accordingly. I have built nearly every one of these planes so far and they all work great!
If I want to use one of the really fast electronic sets up, do I need to modify my build at all?
Make sure you add a CF or aluminum spar with anything more than the Good electronics.
Do I have to use DTFB with these plans?
No, but these plans are designed around the dimensions of DTFB so you might have to make other modifications to get everything to fit right.
You don't seem to offer tiled plans, how do I print full sized plans?
1. Open the PDF you want to print using Adobe Reader X.
2. Click the Print icon.
3. In the Print dialog box, click Poster.
4. Set Tile Scale to 100%.
5. Set Overlap to 0.005in.
6. Click Print.