Here is the video explaining the rib:
Initially I did the side joins just with a sl.st/ch2 which is quick and easy but with the yarn I was using looked a bit tatty...it may look ok with a fluffier yarn. After much faffing about, I decided the best join I could do was as follows (of course you could always just work it flat and sew up the side when you've done):
And so putting this new found knowledge to good use here's what I did to make small size glove with (large size in brackets):
hdc in 3rd from hook, 27(31)sc, join with a sl.st to the top of the ch3, join (as above as are all joins from now)
27(31) hdc in lowest loop of previous row (as rib video) join and repeat this row.
You'll be able to see after a few rounds if this is likely to be a good fit (does it go over the intended hand?) if adjustments need to be made, you can alter the number of the initial chain. If your going with the bobble trim, you'll need a starter chain that is a multiple of 4, plus 2
repeat this row for as long as you want the cuff (ending with a right side row).
Increase by 4 stitches to accomodate the palm so:
for the smaller size: 2hdc (6hdc, pick up the next in-between loop and create a new hdc) 4 times, 1hdc
for the larger size: 2hdc (7hdc, pick up the next in-between loop and create a new hdc) 4 times, 1hdc
Then do 4 more hdc rib rows to the base of the thumb but just work the sl.st. of the join then proceed:
turn, ch7, skip 5. 26(30) hdc in lowest loop of previous row as before,join to 2nd on ch7
ch2, turn, 31(35) hdc in lowest loop of previous row (including the 5chain), join - you should now have a thumb hole
work a few more rows of hdc rib to the base of the fingers, ending with a right side row and finish off unless you want a bobble row in which case:
at the end of the final row do sl.st, turn as normal then: ch1, then through the usual part of the hdc (rather than the lower loop as rib) sl.st, bobble, (3sl.st, bobble) to last 2 then sl.st to end.
insert hook through next hdc
yarn over, pull through (3 on hook), yarn over, pull through 2 (2 on hook)
insert hook in same space, yarn over, pull through, yarn over, pull through 2, (3 on hook)
repeat last line till 6 on hook then yarn over and pull through all 6
rejoin yarn at the first of the missed 5sc and pick up 14hdc around the hole
work 3 or 4 rows of the hdc rib and finish off.
If you're bothered about the join showing slightly on the top then the thumb hole should probably be worked at the end of the round rather than the start for the left glove. So the ch7, skip is worked at the 26(30)th stitch.