By Ragnarok.Calif 2011-03-09 07:49:03
The trouble is, while you're skilling, you're usually aiming to fail the recipe; once you start attempting higher level recipes and try to succeed, you'll find yourself approaching synergy quite differently.
While I was skilling, I went for 5/5 feeding and 5/5 thwacking. I'd argue these are the best ones to do while skilling, because better feeding/thwacking = more skillup opportunities.
However, doing "proper" synths, I started to use the safety lever a lot, which avoids having to thwack at all, and once you're approaching the cap for a recipe, you're at the minimum 5%-per-feed, so having feed training is redundant.
If I was going to pick again, I'd probably skip thwacking and do safety lever, because you can get the Precision Thwack ability from Fisherman's Cuffs (although I've never used it and have no idea how effective it is).
Ultimately, it will depend on how much of a thwacker you turn out to be, as it were.