As far as trading some amount of T1 (Tionese) crystals for T2 commendations (Columi) although attractive,i don't find it right, as it would break the current system and path of character gear evolution, as people would focus on doing lower level / easier FPs.
What is needed in my humble opinion, is to utilize the surplus of those crystals that will increase with 1.3 and i am furthering my proposal for all the items as options from Tionese Vendors as described below:
Current Options
Off-hand items: 24 Tionese commendations & 37 Tionese crystals
Boots & gloves: 32 Ttionese commendations & 51 Tionese crystals
Chest, helm & legs: 39 Tionese commendations& 62 Tionese crystals
Main hand weapons: 72 Tionese commendations& 113 Tionese crystals
Proposed Additional Options
Off-hand items: 74 Tionese crystals
Boots & gloves: 102 Tionese crystals
Chest, helm & legs: 124 Tionese crystals
Main hand weapons: 226 Tionese crystals
Personally as a Software Engineer and developer i like simple solutions and feasible requirements in the sense that they should have a chance of success to be actually considered for implementation and this proposal is easy to implement and does not break current evolutionary philosophy of game gear and end-game playing content.
TIA