I'm back to modeling after 25 years off, & still have my first build on the go after 6 months. Indi tracks have not caused all of this delay but they took a long time to put together, paint & install, plus by the time I'd got the hull etc to a point where the tracks needed to go on, I had to remove the idlers to get the tracks to fit. Thankfully the kit is an IDF Centurion, so the armored sand skirts cover the missing idlers & the Centurions ran with quite tight tracks, not a lot of slack or droop.
I have another set of these tracks for an M113 that might be project 2.......