Please note that there are now more charts and sequences available for the following I-type YSO's, all in Cygnus, using VSP (all ranges pg):
V757 and V522 are currently with Tim awaiting final confirmation but should be available very shortly, even by the time you read this.
V437 15.4 - 17.1 INS
V522 13.5 - 16.2 INS
V757 13.3 - 15.7 IS: P=154d so may be a SR / M
V724 13.9 - 16.0 ISA
V1476 14.5 - 17.0 IS:
V1477 15.2 - 17.0 IS (on same chart as V1476)
V764 12.2 - 14.0 I
V763 14.3 - 16.3 I
V1540 13.3 - 15.2 INS In North America neb
V576 12.7 - 14.2 IS:
V709 12.9 - 14.2 I
V1090 12.6 - 13.9 IS: (on same chart as V709)
Also as of now (Oct 26) sequences are also available for the following I-type stars in Cep:
SX 15.8 - 18.3
FV 16.2 - 17.4 (includes v.close T Tau star LkHa275)
(Note: the preceding objects are very close to the starforming nebula NGC7023)
NO 15.1 - 16.7
Sequences for other I-type stars in Cassiopeia are in the offing.