Not sure which film simulations you meant Armand (VSCO or other Presets made for Lightroom?) but either way there is a really simple solution that doesn't involve having to use the older LR3 versions of VSCO Film. I see you found an answer, but just so everyone else understands:
GGowan recommends using Process Ver. 2010, so that LR doesn't apply 'auto-recovery' on your images (which actually does make a huge difference on some images). However, this is only about extracting the maximum info/detail out of your images during the RAW conversion process for export to Photoshop - What you do with it after you've "processed" it using GG's techniques is up to you.
So for those that are your 'final' images for printing etc (not everything in your library):
1. In LR switch back to Process V. 2010, switch off sharpening, noise reduction etc and then adjust Exposure until clipping gone;
2. Export image to Photoshop and process using GG's method for de-moire, auto-levels, range expansion, contrast and sharpening;
3. Flatten image and close, opening back in LR5 (usually as a TIFF or PSD);
4. If you then wanted to apply any film emulation effects (VSCO or other), you can do this on your processed TIFF/PSD using whichever Process Version you like, as by this point you've already got all the highlights and shadow areas and sharpness to where you want it
One point to bear in mind however - For some of the more extreme Film Effects which can really close down the shadow areas or highlights with heavy contrast, you may want to go easy with adding contrast at the GG processing stage, and leave the image slightly flatter than normal so that you've still got plenty of room to play with when applying the film effect