This sort of thing makes it more difficult for sure. You’re not alone.
Last October we had a spell of cold, wet weather about two weeks before my Wobbler’s scheduled euthanasia. He was miserable, and let me know it. I was afraid I’d left it too long. I put his midweight Wug on him and the next day he was sweet and happy.
And the doubts reared their heads. “If all he needs is extra blankets, I can do that.”
Those thoughts skip over all the other reasons I had decided to euthanize. He still didn’t know where his legs were. There’s still going to be dicey winter footing with snow and ice. His feet dragging was getting noticeably worse. He slipped and fell down regularly in good weather. He was very uncomfortable in the cold - and if he needed 200g at +15C, how much insulation would he need at -30C?
Recognize the temptation, and trust your knowledge of your horse. (((hugs)))