As far as skill cap goes, I'll just let you all know that it USED to be
capped at (level - 15) * 5. But Verant has recently either removed the skill
cap or changed it. How do I know this? Because I have been level 30 for
about a month and a half now, and I have been tinkering a whole lot in that
time. I was stuck for the longest time at 75 skill. I don't just think I was
stuck, I know I was because I made over 150 spyglasses after I was already
at 75 skill and I didn't get a single skill point increase. I was selling
the spyglasses for between 70pp and 100pp and I sold over 150 of them,
making me become one of the richest level 30 players I know. I didn't care
much about the skill cap or being able to make aqualungs or even leveling, I
was raking in the dough and that was all that I cared about. Well last week
while I was making more spyglasses to sell my skill level suddenly increased
to 76 and I was completely astonished! I then proceeded to spend a few
thousand platinum on spyglasses and stalking probes and a few painstaking
hours later I was a master tinkerer. My skill is now 103 and I have
attempted 6 aqualungs. I have made 3 out of those 6 attempts.
In my experience, I believe it is possible that tinkering MAY now be
capped at Level * 5 - 13 (maybe not), but it used to be capped at (level -
15) * 5. I do know though that it is no longer capped at (level - 15) * 5.

Brillian
30 Wizard
Solusek Ro