yeah, I questioned that, but they say some manage in 20 days, some in 50, as in those are the extremes, but most finish in 30.. what helps them, apparently, is they have a relatively large fleet - two twins and 6 singles, if I remember correctly. They also say they fly 360 days a year, I don't think Diamond can say the same.. anyway, I expect it to be intense and tough, but that's the only arrangement that will work for me. I can't afford to stretch it out for months..
as for the IR, I'm doing a bit of practicing myself at home using FSX, just to get into habit of reading instruments, capturing radials, shooting some VOR/DME approaches etc. I hope it will help me along the way