With the ever so restrictive lockdown measures being put in place, I'm considering making use of the time by knocking out the IR written (or at least studying for it). For my PPL, I completed the entire written portion before stepping into a plane and that worked quite well. Of course I learned quite a bit more in the air and through instruction. I used Sportys and self research for any open areas. Can the same be said for the instrument rating? If so, any recommendations on a specific program? e.g, Sporty's, King etc..