A couple of notes:
1. The link to Sir Robert has been disproved according to your own link in the question. Since both profiles cite this both profiles have some contents then that are in question.
2. Death date is approx in Belt -425 while exact in Belt-3 but the two are over 30 years apart. Since Belt-3 has a death age of 48 and Belt-425 has one of 83 this is a discrepancy of 35 years. Could the death date in Belt-425 be that of his son Humphrey who is listed in Belt-3 children list.
3. In no way can Charity be his daughter because he is long dead in both profiles at time of her birth in 1703.
These 2 profiles may indeed be the same person but the marriages in Belt-425 do not appear to have a source while that in Belt-3 seems to be well documented. I did find this which perhaps gives wife 2 source http://pweb.netcom.com/~fzsaund/tydings.html.
What is difficult is knowing exactly what should be retained and what should be deleted doing a merge. More exacting research not relying on suspect sources like internet trees or the "Daughters of the American Revolution Magazine" which have published other articles later shown to contain errors. There are 4 PMs 3 on one and 1 on the other. Perhaps they could work together to do proper sourcing and get one good profile.
http://www.ronulrich.com/ulrich/HumphreyBeltMystery.html this appears to be research notes trying to wipe away the myth and get to the truth written by a Belt descendant. It is worth looking at.
I looked into this more as part of the Integrators Project of helping with G2G postings.