It's difficult to run a good program around a weekend, because those 2 rest days would do more good if used to break up your mon-fri routine.
Another problem would occur if you missed one of those workouts. What would you do? Shuffle it off to the next day and change your weekly sequence, or miss it out and wait for the next week?
I think it's better to drop the 7-day week sequence and use a 4, 5 or 6 day rotation for all your bodyparts. At 48 years of age, I do well training a body part every 6 days, but if younger perhaps 4, or 5 days would be best...and of course this could change if taking gear.
You need to determine your own personal rate of recovery. When deciding this, it's very important for you consider joints because they don't recover as quickly as the muscle bellies yet they take most of the stress. If for example you trained Chest on Monday, Back on Tuesday and Arms on Wednesday, your shoulder girdle, elbows and wrists would not get a break in 3 days.
I prefer doing more on the same day and having total break days rather than less on consecutive days.