Tillering while braced

[Bvas]

Skeater posted a video in the heat strip topic about Bear bows. What really caught my attention was the guy sanding glass to tiller while the bow was braced.
I normally either round corners or sand sides on my glass bows to tiller. But I’ve always taken string off, sanded, then put string back on.

Do any of you glass guys sand to tiller with the bow strung?

[Flem]

I have in the past on self bows, never have with glass. Hate the idea of that stuff getting into anything I have to handle.

[ztontonz]

I have really not a lot of experience, but I can tell you that I did it on 2 glass bows, and no issue with these 2.
I will probably do it again next time cause I am just to lazy to unstring and restring the bow each time in the process

[Shredd]

  About 3 bows back I did a little tiller while braced and sanded the edge of the limbs...  I got some little fretts on the edge of the glass...  Two things may have caused that...  A sharp corner that is being stressed and the fact that while I was sanding the edge of the glass it may have heated up which will soften it and weaken...  May have been a fluke but I will never do it again...  Make sure your corners are always rounded...

[504state]

Done it with wood bows before and both times I nicked the string with my cabinet scraper which cut a few strands. Ruined two strings that way so I don’t do it anymore. I was scraping the belly though.