Well I have just done the quest and got the form and am now at a real loss as to why it is as it is.
Only after doing Drain Bolt X can you get the quest for the form, and none of the spells you make with it are able to be traded...
What confuses me is why there is even tiers 1 through 8 of the spell on the form? Surely someone is not going to make a spell that low to use at a level they can get the form. I understand 9 being there if you are not able to get travertine spell shards and 10 is a given.
Perhaps a way to do it would be to give out a form on each step of the quest that will only allow you to craft that spell so you can actually craft the spells as you level? And once you get the final scrolls you can delete all the previous forms?
Or heck instead of receiving a spell on all those previous quests you just receive a form (the knowledge) to make them... although non crafters would be against this idea... even if end the end they need craft to have any chance at a teched one.
I just don't understand why it was done this way, nothing on the form but the final two tiers is of any practical use.