Hi Simon, thanks. - I tried this again and this is what happened. I read your post, went and tried it on my phone, and yep actually you were right, it worked. However I switched over to my desktop and guess what, it doesn't work.
In one league I have Mixon and then AP, Collins and Breida as backups. Ok so in the top 200 in default settings in a basic 0.5 league with the weighting set at "1" for weeks 8-16, they were 9, 19, 20, and 36. I reset the weights for week 8 and weeks 13-17 at 0 and the weeks 9-12 for "1". The results are exactly the same. That's on my desktop, again on the phone they change. No idea why.