Hi and apologies for not being able to offer tracklogs, but I used MFM on Papago iPhone for the first time this morning and noticed a couple of missing shortcuts.
1) USJ | At Persiaran Kawajipan / LDP junction, there are U-turns on both directions of the LDP underneath the flyover.
I can't verify if the U-turn is missing in both directions, but it wasn't showing up in the north-bound direction.
3.028238,101.579863
2) Subang Jaya | Along Jalan Lagoon Selatan there are a number of small turnings allowing to turn into places like Sports Planet (no U-turn allowed), but they don't show up, thus the route causes you to go to the next major junction and U-turn back on the other side of the road. It's not a big deal.
See Googlemaps here (3.06516,101.596016)
My first post, and I would just like to say awesome job to everyone that makes this map so great.

If my suggestions aren't of any use, or too tedious, or I'm posting in the wrong place, just let me know.
Cheers
Need tracklogs -sunn