These are some great replies.
I think someone hear mentioned that CLF lineages outside of the Chan family one do not have any internal training forms. If so, how is internal training implemented in those lineages? Is it worked into the other forms in the curriculum of these lineages, or have other Qi-gong forms been imported in (like the 18 lohans or the muscle-change forms that seem somewhat universally applicable to any style)?
I can´t give my opinion since I know too little, I only want to share some pictures of Kum La in CLF I’ve seen in the WST of Spain.
http://www.terra.es/personal/wst.sp/home.htm
Fu-Pow, yes, you are right. That’s why I included that “in some respects”. You are talking about higher order of things whereas I was referring to beginner level learning. Learning a short punch - as a beginner, when no refining is yet possible - is much easier than learning a long cheung ngan choi (with all the reaching, keeping the front knee in place, etc). This is especially evident with students that have short-range background (will NOT name any styles, okay :)). When we advance, it becomes harder to learn to do the short-range techniques effectively (and things such as timing, agility, etc become increasingly important).
I do not recall the Chin Na Kuen’s name (there might be more than one), but I will ask around. I have seen it once and it was complicated. At least to my simple mind…
//mika
As I’ve already said, in my opinion Fut Jeung (a fairly common set across the lineages) is a very internal set. If you pulled out some of the individual movements and showed them to people they’d be just as likely to say they were Chen Taijiquan or Yin Baguazhang. It’s just not internal in the Yang Taijiquan kind of way that people seem to think of when you say internal.
The Lee Hin lineage has Fut Gar Kuen, which is a very internal form, and also has Dim Mak sets and relaxed striking sets.
Falcor, Sup Bat Lohan is an integral part of CLF as it is one of the skills that Choy Fook taught to Chan Heung.
The Fut Jeung set from my lineage doesn’t look very “internal.”
Fu Pow:
Agreed that all ranges should be taught in balance from the start.
In our school the emphasis for self defence is in close, in yer’ face 
distance, with full use of all weaponry short and long, usually ending in kum lah, or ground technique (assuming they are still functional/conscious.
In the name of generalization, I would say that the sparring lends more to the use of long range to engage, disorient, and finally finishing with short range technique/cum lah/take down/dim mak or any other finishing “exclamation point” that I can put on my fighting sequence.
GHD:
Agreed.
Up close and personal, it looks kinda similar to me.
Kyokushin reverse punch kinda reminds me (and felt like :-)… that jin choy, or chung choy. The end result is still the same in the end.
And yes all systems are mobile and deceptive etc. I believe none more thatn the other. Still depends on the teaching and scope of knowledge of the sifu laying down the framework.
GSC