I note your use of the expression “glid”. You are a provocative wag, OP Tipping. This deliberate idiosyncrasy rocked me back on my heels, as I’m sure it was meant to do*. I’m a creature of habit, like most of us. I wouldn’t be capable of saying “glode”, either (or of saying “rid” instead of “rode”, or “strid” instead of “strode")—or “strided” or “rided” either, for that matter.
Someone, somewhere, may be taking time off from the doctrine of the enclitic “e” to devise rules for this. Me, I’m content to carry on taking English as it comes, and simply dodging when something not to my taste (like “snuck") comes along. It wasn’t always so. Wordorigins.org, I must say, has been of great help to me, in learning to quell those prescriptive impulses which lurk deep down in all of us. I would recommend a hefty dose of it to just about anybody who speaks English, or hopes they do ;-)
*Edit: I see it hit aldi between the eyes, too. Don’t like to think of what it would have done to Dr. Johnson