If you can keep both that's a great deal. If you do drop down to 4-6 days a month, even if you have to commute, it's like being a military reservist. Being single, no kids, no debt or low debt, makes it much easier.
But you still have to reach the competitive minimums/averages to get hired. Either internally or at a different airline. If you choose a path that delays the start of your major airline career you're losing time at the end of your career. That's a loss of $30-40K per month minus your current income. That's why guys push hard to get hired ASAP, it has a significant value as well as being more senior every single month of your career.
Good luck.