In reply to Mr. Lee:
I have the BD Micro Stoppers and they are very good and easy to place
downsides are:
- they are expensive
- I only really trust the 2 largest ones.
- I hardly ever place them
upsides:
- well made and seem to always fit very snug
- When I can place them and nothing else is available they are worth all the money (got me up at least 1 route I would not have taken on as the crux would have been unprotected).
- take up almost no space on your rack