Climbers scramble: Heart - Twin Towers - Barclay - Lorette - Skogan - McGillivray traverse

31.75km with 2,967m gain; 15:40hrs car-to-car (6:45am - 10:25pm); 7.5L of water!
Solo.

Heart Mountain: summited at 8:05am, spent 20mins
Grant MacEwan Peak: 8:50am

Twin Towers: 9:40am / 25mins
There are quite a few TR's in the Net, including description of the route's crux (DC1), a downclimb. If you weren't comfortable with it, then it'd be better to stop at the Towers, as further is even more difficult.
Skipped the West Tower as already did it before and wanted to avoid unnecessary gain/loss.

"Mr Barclay": 11:10am / 10mins
A high point on the ridge with elevation at 2,240m and prominence 100m+. Has a cairn. As it was unnamed and the rock structure is very similar to Mary Barclay's, called it in that manner.
When heading from the Tower, aim for a slope between two of them, follow a treeline that goes down along rock until you can easily traverse to the right toward the first notch on the ridge. Scramble it up and stay on the ridge. That IS the easiest way.
Had an unsuccessful attempt last year, where we turned back at a downclimb (DC2), so I brought a rope for rappelling. I guess last year we still had some patches of snow and it was completely dry this time. Though the downclimb is very exposed, but pretty obvious and with good holds (luckily). Followed a crack till it ends in the middle of downclimb, then there is a funky side step and continued right on the "ridge" (which is more a corner of the wall there due to the angle). Would rate at 5.3.

J1: junction to Mary Barclay, 3km return.

Mary Barclay: 12:10pm / 25mins
just a simple walk to the summit and back

J2: junction to a non-technical slog on climber's right, requires quite a bit of elevation loss.

J3: junction to Lorette and Skogan
followed a game trail on climber's left at J2; I was already low on water at that moment and my thinking was to go till a snow gully I saw from the distance and check it out. If no water, then to turn back and head back via Heart Creek.
Was very lucky to find a small stream in the gully, believe I said "thank you" (to whomever it might be) about 10 times aloud and spent 20 minutes refreshing and filling all my bottles there.
Right after the gully, there was a big slab bowl that ends with some ledges; followed that until a chimney on the left; it led to an exposed ridge and a notch in the end of it. After the notch, there were a couple ledge and a scree slope to the main ridge.
I would rate the chimney and ridge as low 5th class. And the whole crux, from the slab to the notch is one way only. It'd be crazy to downclimb it; it's either up or heli.

Mt Lorette: 3:20pm / 15mins
stayed on the ridge or trail for the most part from J3. Nothing complex.

Skogan Peak: 4:55pm / 30mins
short pleasant ridge walk from J3, quickly turned to a slog with some routefinding.

Skogan North Peak: 6pm / 2mins
Elevation at 2,628m and prominence 100m+. Has a cairn.

Mt McGillivray: 7pm / 15mins
To tell the truth, I thought exit from the last summit will be pretty quick. My mistake. It took me 2:45hrs to get down (J4 on bike trail). All in all, from the summit to the trailhead I got additional 10km in distance (21 -> 31km) and about 300m gain(!!!).
Already at the summit, found a record in register saying that "did McGillivray via Heart Creek". That could've been a much shorter and faster alternative.


Line coding on photos:
red - my track
yellow - alternative