Hey welcome to the forum! That's a great question and hopefully we'll get some good responses from the group..I'll throw in my thoughts later this morning when I have a keyboard other than my phone...glad you found us!
Welcome to the forum srjr! i usually tend to wait towards the middle part of the day especially if I feel that some of the more over-inflated lines could move in my favor. Others won't budge from the overnight opener, but on the busier days (Wednesday, Friday, weekend) I will do some analysis for the games and look for some capping advantages if I feel the line is off.
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NBA is tough you really gotta watch the lines totals can move a couple points. So depending which way your going to you gotta pick your spots