Help with sock heel

I am trying to figure out this sock heel on a pattern called alberta clipper boot socks…I found in freepatterns web site.

I have made a few pairs of socks before so I know the basics…but am not an expert.
I am working the med size with dpns 16,17,17.
the pattern states…knit across next 10(14)(13) sts, break MC, attach CC and turn. P10(14)(13), then with same ndl, p1,M1,p11(p11)(p2tog,p13) from next ndl. (23,25,27 heel sts on ndl)
Divide rem 23(25)(27)sts on 2 ndls and leave for later
When I knit 14sts break MC attach CC and turn. P14…I am left with 2 sts on 1 ndl. I get confused at this part. PLEase can someone translate to english? thanks

As I understand it, I’d slip the 2 sts onto one of the other needles to be included as one of the 25 sts you leave for later

Yes I understand that…it’s the M1 part with which needle…??? I don’t understand if I have to increase one stitch how can I possibly end up with 25sts? And the pattern as I understand it, says that the p2tog is for the large size…I am soooo confused.

It could be how you distribute the sts on your DPNs. You are working multiple of 5 sts (rib). If you cast on 50. You should have 20, 20, 10. All dividable by 5.