Lock-Chain Ornament Pattern

One person expressed an interest -- that's quite enough for me. Here's the pattern I created for the Design Challenge 2. Click on the image to get a larger size...or check the HBT file section or Etatters, because I'll post a .pdf file in those places.
[PS -- thanks, Jane Eborall for introducing me to lock chains. I'd never neard of them before your hippo TIAS]
Here goes (oh, and keep in mind, nobody's test-tatted this thing):

Materials:
2 colors size 80 thread
Two shuttles

Techniques:
Split Ring
Self-Closing Mock Ring
Lock Join

Abbreviations:
- or p = picot
— = double-length picot
—— = quadruple-length picot
lj = lock join
RW = reverse work
SCMR = self-closing mock ring
Sh = shuttle
SR = split ring
vsp = very small picot

Begin at SR A: [Sh 1] 4-4——4 / [Sh 2] vsp 5-5 (the vsp is used attach the final lock chain)

*Lock Chain : 4-3-3-3-3-3

Inner Ring B : [color 2] 6 (+) 6-6 (on subsequent Rings “B” join to free p of previous ring B, shared join with lock chain between Rings H and I)

Lock Chain : 3+3+3+3+3+4

SR C : 4+4-4 / 5 — 5 (to quad-length p of Ring A, after twisting the p 3 times)

Lock Chain: 6

SR D: 4-4-3 / 5

Chain: 6-6 RW

Ring E : 6+3-6 (to free p of Ring “C”) RW

Chain : 6-6 RW

SCMR F: 8+4 (Ring f 8-8) 8 (to free p of Ring “E”) RW

Chain : 6-6 RW

Ring G : 6+3-6 (to free p of Ring f – the ring thrown off the SCMR) RW

Chain : 2-2

Ring H : 6+8-4 (to free p of Ring G)

Chain : 2-2 lj to free p of Ring H

Lock Chain : 6 (lj to free p of Ring B) 6 (place size 30 thread or fine paperclip to create a joining space for Ring I) and continue with

Chain : 2+2 (join to free p on the Chain between Ring H and the Lock Chain) RW

Ring I : 4+8-6 (join to space created by thread or paperclip in previous chain) RW

Chain: 2+2 (to free p on Chain between Rings G and H) RW

Ring J : 6+3-6 (to free p of Ring I)

Chain : 6+6 (to free p of Chain between Rings F and G) RW

SCMR K: 8 (Ring k 8+8 [to free p of Ring J])4-8 RW

Chain : 6+6 (to free p of Chain between Rings E and F) RW

Ring L : 6+3—6 (to free p of Ring K) RW

Chain : 6+6 (to free p of chain between SR D and Ring E)

SR M : 3+4-4 / 5 (to free p of SR D)

Lock Chain: 6†

SR (A) : 4-4——4 / 5 (+) 5 (to free double-length p of Ring L)**

Repeat from * to ** 4 times and from * to † once; end with lj to vsp at beginning. Cut and tie ends, hide with magic threads