Test for tubular knitting
40:40 on front and back bed = 160 needles in the round
MG 5,5
1. Jacquard on fb and vertical stripes on bb
HX < / HX < , Deco on 4, colour change RC 2
2. Tuck Mosaic on fb and ? on bb
DX < / DX < (RC 2)
DX < / DX (RC 2)
Deco on 4, colour change RC 4

Very different effects. For the Tuck Mosaic ( in this swatch width 16/17cm on both sides, so about 33 cm in the round)
For the HX part in this swatch 11 cm on each side (22 cm in the round). 2 cm = 7 stiches = 14 RZ (?)

I also used HX on bb , which made the sample narrower on the reverse side only).
Could be used for mittens, socks, scarves, bags etc.