Leacture over....
Dont stop I am very interested in what you are saying. One canal is bent and they are both not the biggest so that the normal amount of wax can be an issue. I thought the whole point of the mold plugs is that it dosent go down the canal but more like caps the enterance.
I have also looked in to the Docs pro plugs non vented as they do not go down. http://www.earplugshop.com/docs-progplugs-clear-vented-ear-plugs.html and then got side tracked to the mold your own which you have now put me off
One of the problems with the diy moulded ones is that the material does shrink over time, usually starts around 6 weeks, you can just mould them as a stop but then that will block your ear canal completely, again if you suffer from wax, not a good idea.
The Doc plugs are designed for swimming, yes they are vented which is better than blocking completely but then you have no noise protection as such.
I dont usually get involved in these threads on forums as its such a hornets nest of opinions
i have very narrow ear canals too and usually wear the Alpine motor safe plugs, will usually cost you around 20-25 quid from most hearing aid shops or on the internet ( sorry no good at putting links on lol) but at least they are filtered for the right protection and you can rinse them clean.