I understand not wanting to put labels like 5.10 on an indoor course, because yes, it is not the same, but some clear understanding of the difficulty of one course to another is nice when you are an intermediate climber looking to improve.
1	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	2	nsubj	2:nsubj	_
2	understand	understand	VERB	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	0	root	0:root	_
3	not	not	PART	RB	_	4	advmod	4:advmod	_
4	wanting	want	VERB	VBG	VerbForm=Ger	2	ccomp	2:ccomp	_
5	to	to	PART	TO	_	6	mark	6:mark	_
6	put	put	VERB	VB	VerbForm=Inf	4	xcomp	4:xcomp	_
7	labels	label	NOUN	NNS	Number=Plur	6	obj	6:obj	_
8	like	like	ADP	IN	_	9	case	9:case	_
9	5.10	5.10	NUM	CD	NumForm=Digit|NumType=Card	7	nmod	7:nmod:like	_
10	on	on	ADP	IN	_	13	case	13:case	_
11	an	a	DET	DT	Definite=Ind|PronType=Art	13	det	13:det	_
12	indoor	indoor	ADJ	JJ	Degree=Pos	13	amod	13:amod	_
13	course	course	NOUN	NN	Number=Sing	6	obl	6:obl:on	SpaceAfter=No
14	,	,	PUNCT	,	_	6	punct	6:punct	_
15	because	because	SCONJ	IN	_	22	mark	22:mark	_
16	yes	yes	INTJ	UH	_	22	discourse	22:discourse	SpaceAfter=No
17	,	,	PUNCT	,	_	22	punct	22:punct	_
18	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	22	nsubj	22:nsubj	_
19	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	22	cop	22:cop	_
20	not	not	PART	RB	_	22	advmod	22:advmod	_
21	the	the	DET	DT	Definite=Def|PronType=Art	22	det	22:det	_
22	same	same	ADJ	JJ	Degree=Pos	6	advcl	6:advcl:because	SpaceAfter=No
23	,	,	PUNCT	,	_	37	punct	37:punct	_
24	but	but	CCONJ	CC	_	37	cc	37:cc	_
25	some	some	DET	DT	_	27	det	27:det	_
26	clear	clear	ADJ	JJ	Degree=Pos	27	amod	27:amod	_
27	understanding	understanding	NOUN	NN	Number=Sing	37	nsubj	37:nsubj	_
28	of	of	ADP	IN	_	30	case	30:case	_
29	the	the	DET	DT	Definite=Def|PronType=Art	30	det	30:det	_
30	difficulty	difficulty	NOUN	NN	Number=Sing	27	nmod	27:nmod:of	_
31	of	of	ADP	IN	_	33	case	33:case	_
32	one	one	NUM	CD	NumForm=Word|NumType=Card	33	nummod	33:nummod	_
33	course	course	NOUN	NN	Number=Sing	30	nmod	30:nmod:of	_
34	to	to	ADP	IN	_	35	case	35:case	_
35	another	another	DET	DT	_	33	nmod	33:nmod:to	_
36	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	37	cop	37:cop	_
37	nice	nice	ADJ	JJ	Degree=Pos	2	conj	2:conj:but	_
38	when	when	ADV	WRB	PronType=Int	43	advmod	43:advmod	_
39	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	43	nsubj	43:nsubj	_
40	are	be	AUX	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	43	cop	43:cop	_
41	an	a	DET	DT	Definite=Ind|PronType=Art	43	det	43:det	_
42	intermediate	intermediate	ADJ	JJ	Degree=Pos	43	amod	43:amod	_
43	climber	climber	NOUN	NN	Number=Sing	37	advcl	37:advcl:when	_
44	looking	look	VERB	VBG	VerbForm=Ger	43	acl	43:acl	_
45	to	to	PART	TO	_	46	mark	46:mark	_
46	improve	improve	VERB	VB	VerbForm=Inf	44	xcomp	44:xcomp	SpaceAfter=No
47	.	.	PUNCT	.	_	2	punct	2:punct	_
