We hiked from the Lexington turnpike where you see the sign for long wayside Mountain up to Bald Knob site. It has steep elevation and should not be rated as Easy. It is 2.5 miles to the top which took us 1.5 hours. There are some very nice vistas from the top and the trail ( AT) is well marked throughout on the trees with white markers. However there was no marker for Bald Knob, but luckily we had our GPS.
It is not clear where the easy hike with little Irish creek is - we could not find it and it was not on the map at the parking area. Just know that if you do hike to Bald Knob it is a challenge and you will need lots of water.
Stunning views!! I had the summit fully to myself and seldom encountered other hikers which was both amazing (it's a beautiful day! The world should be hiking!) and glorious. A few backpackers and day hikers, but overall pretty quiet. And the summit-- wow! The west overlook has great rocks to enjoy the view, but I preferred the east overlook and it's 360 panorama.
A few logistics for those who may encounter the same questions I had:
-- several cars are parked at the trailhead for the AT; keep going to the parking lot, which has both ends of the trail's loop.
-- the trail is now called the Henry Lanum Memorial trail; the Mt Pleasant trail is solely for the .5mi trail to the summit, which juts off the main loop.
-- the full loop is 7.3mi (including the one mile steep up and back for the summit trail)
Solid loop with good views. If you park in the first lot you come to on the gravel road, you will hike the trail counter-clockwise, which means that you will get the great views from the summit meadows sooner rather than later (which is how my group hiked it).
I'd recommend continuing to the second, larger parking area and hiking clockwise so that the best part is closer to the end of your hike. Views from the clearings at the summit are really awesome and are very unique among Appalachian hikes I've been on as there is practically 360 degree visibility.