flavor %tages

So im a new DIY'er and i wanted to know if you guys, when staring out, followed the recommended flavor percentages while trying to make your own juice. i ask because i have been looking through recipes and some of them have really low percentage flavors in them ie 0.5%, i know it makes lavers of flavoring and everything doesnt need to be @ 5-10%.
Secondly whats the max percentage of flaovring suggested for a batch? Ive noticed recommended flavor % is usually between 4-10%, but with recipes calling for 6 or more flavors that percentage adds up?
thanks in advance guys/gals

Have a look at this for SINGLE flavor starting percentages.
https://docs.google.com/spreadsheets/d/1agXdua8bEp8MV4z1mn3qX4AXCS4P0RxQXcy2lDa7ccc/pub?gid=7
Standalone % would decrease with more flavorings added.
Some flavors are strong as ever! FA Esspresso I use at 0,5% for example.
It's all about what tastes good to you. I personally like to stay on the low end of the spectrum, less flavoring the better given there's tons of things that compose a flavor concentrate.
That said I think. My highest flavor total is 15%

What CurlyxCracker said and if its not enough for your taste you can add more easier than to take some out.

thx