This is one of those cards people panic over, but I’m really glad you framed it the way you did. I read with both playing cards and tarot, and the Ten of Spades honestly reads so differently depending on which system you’re in. Like you, I like mixing them up to see a message come through different systems.
In straight cartomancy with playing cards, the surrounding cards matter way more than they do in tarot. Like, the Ten of Spades next to a Diamond card means ‘disappointed expectations, but they will surely come true later.’
Next to a Club it means ‘death of an enemy’ - which I read as the end of opposition rather than actual death. Between two Hearts? ‘Despair of love, loss of a friend.’ So the card shapeshifts depending on its neighbors in a way that the Ten of Swords just doesn’t quite do in a tarot spread.