My Christopher 403 was beveled, never really had a complaint,
now my Hungarian is not beveled, and although I'm bow'ing
about 90% of the time right now, I've also done some pizz
practice, and I dont notice a problem at all.
I wouldnt worry about it unless you feel its impacting
your playing in some way, and when just starting out
thats pretty hard to judge anyway
Its a rental anyway, right? Have your teacher check it
out when you get one, and then its something to keep
in mind for when you buy one of your own.