Thanks for the helpful suggestions.
And re those trims forming a barrier, I understand the principle suggested but like putting a couple of sandbags on your doorstep in a flood, I'd be surprised if it makes much difference.
I found a pic of mine before I removed them, just wrong.
![[Linked Image]](https://www.tm-img.com/images/2024/07/07/My-trim-strips.jpg)