<b><font color=green>1) Yes. Shifters should be able to choose exact forms within their specialization.</font></b> Forms are the major part of the shifter design and randomness is frustrating, some may even delete when they get unwated forms. Let shifters choose their forms, similar to other classes like warriors, thieves, rangers. Probably some further balancing of forms will be required and maybe some limitations will be placed upon the most powerful combinations (if needed).
<b><font color=green>2) No. Leave things as is. Random forms are ok..</font></b>

If you have some thoughts about it feel free to share.