I personally would try to keep the protein and fat more constant and play around with carbs. So if you are shooting for strength and gaining weight I'd say 280 grams of protein should be an everyday thing and that 50 grams of fat is too low. Try to readjust your numbers from there.
So 280+ grams of protein and at least 100 grams of fat. Then adjust the carbs if needed. Another thing I would consider is that while trying to gain, why cycle the calories so much?
"And for crying out loud. Don't go into the pain cave. I can't stress this enough. Your Totem Animal won't be in there to help you. You'll be on your own. The Pain Cave is for cowards.
Pain is your companion, don't go hide from it."