

I am hoping to get a long L type but have recently had 3 other Chinese visas. Issues?
I am a British citizen residing in NL, so no issues with applying from the EU. I have two main considerations though.
First, I am hoping to get a L type to spend as much time in China as I can, for at most half a year if possible. However I have no set itinerary for what I would do when I am there and I am wondering if that could cause problems. I have a Chinese friend I am planning on travelling around with, and if she provided a letter of invitation would that be sufficient, along with a flight ticket?
Second, I was in China last year on three different visas (one 30 day S2 type, a 30 day X2 type, and a 30 day L type with double entry, used in that order), the last time I left was on the day the last one expired on the 13th of December. I have heard from people that if you try to enter too many times the officials become suspicious and unwilling to provide another one, especially if I am not going for an official reason. I have not yet booked a ticket, and don't want to book one only to find out that I will not be granted when I go and apply for it. Please advise.