Thanks, yes that Varios-2 is what I would prefer but just can’t pull the trigger on that price!
Well this is a setback...
I'm going to check with the local glass shop on pricing to replace either one pane or all 4 sides. I'd kinda like to rebuild with cleaner looking black silicone anyway. Will also see if they can drill the holes!
Thanks - I think I know how I went wrong - just wasn't going straight down well enough. It had a momentary bind up and that's all it took. Also possible that the glass was scratched - pre-scored in essence. If I get replacement panes I'll have the glass shop drill the holes!