honestly even though it is frustrating there is a pretty simple solution to it.
just level a powertech to 50.
let's face it, gearing is the only thing that requires a lot of time and you can just sent 80% of your merc's gear mods/armorings/enhancements over to your powertech and have him fully geared instantly.
just uncraft the mods put them in some legacy gear and sent them over.
with the new event you can even sent barrel over since you get a legacy bound weapon.
Yes, I have entertained the idea of switching to Vanguard occassionally, seeing how they always seem to outperform us damagewise at equal gear level both in PvE and PvP. But I have invested thousands of hours of hard work into my commando and I cant carry over my huge title, pet, speeder, valor rank etc. collection. Switching to another character doesn't fix the problem, only compounds it.