Khulampu mission
In reply to Cyril Zotmund (msg # 10):
Older versions of GURPS had half a skill point, which from memory improved on the default by 2. So an easy skill with half a skill point was at att -2, average at att-3 and so on.
The problem with introducing such a change now is that there are many times it would have been very useful in the past, but they were not used because they were not options then. I could consider that as a house rule only if all the players want it, but I suspect it was dropped from GURPs for a reason.
Familiarity or lack thereof with items used with skills should cover that. So you are now familiar with Gunner(Machine Gun), negating the -2 penalty that would have applied on top of skill default, but the basic skill still needs to be learnt.