Loom Knitting Questions

by Shinebo

I just started loom knitting (and have not knitted with needles), and have successfully made 2 hats and a scarf. I would like to try some harder things but am having trouble understanding some of the patterns. I do have the Loom Knitting Primer, but can't find answers for my questions below.

Question #1: One pattern calls for a loom with a peg number multiple of 8 + 2. What does this mean?

Question #2: A pattern I like is for a poncho for a child. It shows a conversion chart to make adult ponchos. But for the small child you cast on 22 stitches. The panel is 21 in. in length and 10.5 in. in width. The adult panel is supposed to be 31 in. in length and 15.5 inches in width. I can figure out how to make the panel longer but not wider. My biggest loom has 41 pegs (yellow knifty knitter) so do I need a bigger loom? How do I know how many stitches to cast on?

Question #3: I have seen patterns where they say I need to cast on 60 stitches. Does that require a really big loom? I didn't know they came any bigger then the one I have.

Thanks,

Wendy