Any chance of not losing abilities when doing low level dungeons?

[Chiramu]

I agree with this as a DPS person - learning your rotation serves as a means of maximizing your damage output and overall effectiveness in higher dungeons.
By doing lower level dungeons, and having your higher level abilities removed, you cannot focus on rotation...

If you have a hard time with DPS in low level dungeons roll a tank. PLD gets shield oath at level 40, anything below that you have bugger all to get threat. WARs get Defiance at 30, it's hard work to get threat from over-enthusiastic DPS when you have two skills.