WerkIt, if you do it using your fingers and palm, the result might crumble while you are putting it under your lip, and you will have to wash your hands beacuse they will be dirty from tobacco and its juices. At least I had. If you cut the end off a small syringe (or buy one of the specialized tools), there should be no problems at all. The only problem I encountered with loose was its removal. For the first weeks I had to rinse my mouth to get rid of the crumbs after I removed the pris with my finger. Nowadays I do not do it every time, because I learned to remove it almost in one piece, but both removal and "baking" (it seems like injecting something under my lip, which is exactly what I am doing, but people might get wrong ideas

) in public is still a problem for me, so loose is almost exclusively for home use for me. But I work at home...
I can only recommend you to buy some and try it. I do not think you will be disappointed. Especially if money is a factor. There is equivalent of 90 (!) mini portions in a single tin of loose. I use it virtually all the time. One tin lasts 10+ days for me. Plus you will have the taste, a bit stronger than the portions. The downside is that you cannot play with the snus, suck on it, lick it, etc. (unless you are *very* careful), because it would cause the tobacco to slide down and a mouthful of snus is almost the oposite of its usual taste - burning, acrid, not pleasant at all. Yes, and loose is said to go bad in summer much sooner than portions, especially white ones, if not refrigerated. That includes transport. I should be out of snus just in the middle of summer, so I hesitate whether to buy a loose taster kit (8 different tins) now or wait to use all and then buy some Oliver Twist + whites to last till October or so.
One mini portion is roughly equivalent to 0,5 ml in the syringe. I use a tiny bit less than 0,5, because I get the tobacco in by pushing the syringe into the snus in the tin, so it is rather compacted before I start pressing it to get the final shape. I am lightweight, too.
If a mini portion is sufficient for your needs, going into higher nic loose might be a problem. You would then have to make really, really tiny pris. It can be done with the syringe (or Icetool, I presume), but there will not be lots of taste from such a small amount. Just nicotine.