From the walkthroughs and guides from all sources i found, the stats for knight and dragoons are almost the same:

Knight~~~~~Dragoon
HP 7~~~~~~~HP 7
MP 3~~~~~~~~MP 2
STR 6~~~~~~~~STR 6
INT 4~~~~~~~INT 3
AGI 5~~~~~~~AGI 5


As you can see, knight actually has a better stats than dragoon..So, my question is..
If i want to make a dragon, should i just build up a knight until 50 then change it to dragoon? cause in the end knight will get more stats..Or are there any good things if i change to dragoon early?
*Note that i have 2 priest lvl 50*