If you don't like the idea of having to cut up your grandma and chuck her somewhere after the deed is done, you could try different approaches that only involve trading.

We need more info: the relative size of the 2 sides is the most important. Entry points not that much (their effects near/far from entry also depend on the detailed structure of the relevant derivative(s)).

If they were open at the same time, it would mean the short is ~1.9 times as large as the long. So each step up pays you 1 and costs you 1.9. A simple chicken-out strategy is: try to make the positions equal as much as you can, exploiting any "discount" (that is, dips if it's the short you're trying to reduce). Once they're equal, you are more or less insensitive to price variation because, as many have pointed out, it's equivalent to being flat (IF after that point, you close them together!). When you're there, you can assess your realized P&L and either close the game (no-brainer if you're green overall) or keep it going.

This is what I'd do, at least - but most importantly, I would try not to find myself with the short larger than the long in an uptrend! That's what planning ahead is about.