Let me get this straight your vet sparingly vaccinates due to risk involved
in vaccinations but you cat goes outside
DO me a favor pick up the phone and call 5 vets in your area and ask them
about vaccinated a pet that goes outside is it worth the risk.   He there
are risk as with all medicine
Do you have the newsgroup   rec.pets.cats.health+behav   if you do I want to
invite you over to the group   Please go there and PING PHIL P  and ask him
about this.  He is not a vet but is the most knowledge person I have ever
dealt with that was not a doctor or a vet. this is his website
http://www.maxshouse.com/vaccine_protocols.htm

I have all my cats vaccinated some feline disease are from indirect contact
based some come from direct contact with other cats some are passed from the
litterbox so on and so on.
Personally new vet over the vaccinations I can understand the FIP
vaccination  but the others.  The FIP has too much controversy around it and
my vet does not recommend it due to the lack of evidence of it working.
 Distemper is spread thru contact all you cat has to do is have an open
window thru the screen  smell another cat that jumped up to him and the cat
is exposed.  Rabies depending on where you are  here in Florida it is a big
possibility Depending on where you live  and your animal control laws  what
would happen if your cat bite and scratched some one and animal control
seizes your animal and your cat is not vaccinated.  ASK THE VET THAT

Until I moved to my present apartment, my cats have always
been indoor/outdoor.  I always had them vaccinated for
everything going, then (NOT FIP, because the disease itself
has only been recognized comparatively recently, so the
vaccine was not offered.)  Because I had lost a couple of
cats to FLV, I'd include that.  However, now they're indoor
only, the vet does not feel some of the vacinations are
necessary, and she says there is always possibility of an
injection-site abcess.