By good luck, I've been doing lots of work lately inside the old Malew registers on Family Search, mainly to find and sort out all the Gellings for Geoff Gelling who's descended from them.

In Family Search, if you go to the last page (image 69) of the old Malew Register (1649-1706), there is a line written at the bottom: "This Register was transcrib'd from the Original by Tho Quayle 1764".

The writing throughout is beautiful and clear and it looks like all the years are included. However he made no indication of the inevitable missing or unreadable bits and pieces from decay etc. to the original. Thus, I suspect about 10% of original entries are lost.

Page1 says:
Dates of this Book:
Bapms 1651-1705
Marriages 1649-1706
Burials 1649-1705
Vicars: - Thos Parr 1641
Robt Quayle 1691 ? 1695 see p 129
John Woods 1696

The Malew registers are full of fun stories. I ran across a weather report of a terrible storm and another one about a long drought. There's a story about somebody named Christian who was shot dead but who made a magnificent speech before he finally succumbed to his injuries. Sounds like Opera! Lots of other gems scattered throughout.