Since apparently I have nothing better to do than make posts on this forum, I would suggest a scaled respec cost. I know that some of my earlier units had their points spent in a pretty stupid way. I learned as the game progressed how to use their points better, but now the respect cost is too much for a level 19 unit (around 9000 scrap) to be worth it. It’s much better to spend that scrap on an equipment upgrade. Respeccing should definitely be something you don’t do after every level, but it should start out much cheaper and be a set cost regardless of character level. Then that cost can increase with each respec much like the unit recruitment cost. That would let players fix their earlier mistakes.
-zenchronus