Sounds like a good plan to work on it incrementally while at the same time maintaining your flexibility and improving core strength. I like the recommendation to check your power outputs at different positions to see if you're sacrificing wattage.

OTOH, I tried going from 2 spacers to 1 earlier this year, but after 3 weeks, my back wouldnt allow it to happen. Then again, I'm in my mid 30s and while I work on flexibility and core strength, I'll never put my palms on the floor.