I have been playing a healer as my main since release and have done a lot of HM FPs. Some of them with guard on me and some without. And to be honest, it seems like it makes absolutely no difference if Im guarded or not. If the tank knows what he is doing, there is no way I can pull aggro. Aggro is a mechanic I completely ignore as a healer. I do have a aggro dump, but to be honest I can't remember the last time I used it. The only time I ever pull aggro is if there are mobs the DPS or tank haven't dealt a few hits. I think its fine to guard the healer if he actually is pulling aggro, but by default I would certainly guard a DPS. Especially sentinels seem to be pulling a lot of aggro (I have no numbers to back up that statement, to me it just seem like they pull aggro from the tank more often than the other classes based on the amount of healing I often end up doing on them).

The first couple of weeks after the LFG tool was released, I got Kaon again and again (5 times in a row being the record). But since then it has been much more random what FP I get. I am pretty tired of Kaon though

Last boss in Kaon can also drop the schematic now (seen it twice now).

I have soloed T5 HM on my commando (columi and rakata mix with a columi geared healer companion). I did skip all that I could though (which in T5 is most of the instance).

Yes, I have the exact same problem. Can't see a thing. I ended up just removing the "flashlight buff" from myself. Was able to see much better without it.

Im a sage healer, and that is exactly my biggest problem in that fight. It is so much easier to heal if people just spread out a bit (staying in range for the AoE heal) and stand still. There is no need to run around as headless chickens. As long as people stands still and makes sure to interrupt his headshot ability, the fight is actually not that bad.

I have also pretty much given up on getting a group for that one (still havent tried it). Im on Red Eclipse if anyone needs a healer for it.