Think of it this way.
Start playing with an AEG and get some experience.
If you think you can take the heat of sniping, then go for it. But, as you can see, it is ill-advised.
If you think that AEGs are "bulky and unweildly", why not get a smaller one? E.g. a MP5/variant or something even smaller like a Mac/MP_?
VFC Saber SD Urban Grey - VFC SCAR-L Tan - KWA MP7 Tan
WIP: Magpul FPG Conversion to TM Specs (currently KWA Spec)