Here are somethings I like to see in the builder,
1. What do you have today to invst is kinda of misleading. Instead, what is your current savings or initial saved amount to be more meaningful.
2. Not everybody got 50,000 to start so it can be more granular to have 10k or 25k.
3. Show how much inflation you are taking into account and so people want to be more conservative, so it can be allowed to change.
I will keep posting as and when I find it..
Overall, a very good effort and keep going..