Energy Drain

The reason i see shockwave as important is cause it's like your only other attack in Transform. For 3rd job I would totally go for energy 1st build cause 3rd job transform = LOLWUT? Transformless builds would kill demolition and your temporary invicibility frames (unless you can do something else, but idk, not there yet xP)

For me the reason I picked brawler over slinger is cause i liked the transform and the high hp factor. But it's still someone's choice whether or not they want to have transform or not.

I think leaving energy at 11 wouldn't be too bad. or 21 blast/ 20 energy since blast is replaced (i think) by that other skill in 4th job right?

Why does it matter that it's your only skill available when transformed? I don't use transform except for traveling, and I don't plan to use demolition for anything except for bossing. If I start using shockwave at horntail i'll get kicked out . I'll still have lvl 21 shockwave. It's not like i'll be shockwaveless.