We started this year out doing PHFHG and LHFHG, and we typically finished by 12:30 PM (starting at around 8:15 AM). Then, my middle ds finished his LHFHG, and we began BLHFHG about halfway into the year (my oldest continued on with PHFHG), and we are still done by 12:30, or at the latest 1:00 PM. This is with rotating playtimes with the dog, our feisty little 2 yo, and now the new puppy

. Anyway, once you get about a month into the programs, you'll probably hit your stride and have the time whittled down to around 4 to 4 1/2 hours. You will love the combo of doing these programs. It's been a relief to be meeting each of our dc's needs so easily this year, as they are too far apart to combine well. The PHFHG has about a 1/3 of the boxes done independently, and that gives me a good portion of time to be doing BLHFHG with my middle ds. I think you'll be happily surprised at how well this all flows!

Just be sure to allow a "training" period for the first 3-4 weeks - and it helped our ds doing PHFHG to learn to use the PHFHG guide himself right from the start. He just checks off corners of the boxes in the guide as he does them.
In Christ,
Julie