I think there are two different versions of the Lomography Redscale films; I have a 120 three-pack of "Lomography Redscale XR 50-250"; the other version has a rating of ISO100.
I shot the first roll at ISO100 and the results were disappointing with poorer image quality than I had previously experienced with home-rolled 35mm redscaled film. There were several blue scratches and a mottled appearance. Two other films developed in the same reel were fine.
The scratches may be due to excessive handling both while loading the film and loading the reel. At first I attempted to load the film into a Fujifilm GA645Zi, which winds on automatically until the correct position. However the camera just kept on winding until the whole roll had gone through - same for a second film. I assume the Fuji camera depends upon reading a bar code which isn't there on the Lomo film. Rather than waste a third film, I went into the darkroom to re-roll the film and put in a Yashicamat instead.
When I came to load the film onto the developing reel, it was difficult to load and I had to re-cut the end to smooth it. Perhaps I should have flipped it over so that the curve was going the same way as normal.
My eperience with redscaled 35mm film is that +1 stop from box speed gives a deep red cast which looks like sunset or maybe under-exposed, +2 stops give an orange cast, and +3 stops give a yellow cast. It is very easy to re-roll 35mm to get it the right way round for redscale; doing that with 120 is a little harder because of the need to avoid buckling the film as you roll it up.
Here's one with DIY redscaled expired Kodak Gold, which I got for £2 for six rolls:
99 red balloons ? by
Kevin Allan, on Flickr
And this one is redscaled Poundland film put through a Mamiya RZ67:
Side Ways by
Kevin Allan, on Flickr