all the advice you'll get here comes from different people,
with different capabilities and preferences.
since the putter is the club that actually wins you those birds,
what I'd suggest is that you either rent some 3-4 of the top line putters,
or (less fun option), wait for a free rent weekend, which can
happen anytime, but with the season coming to an end,
I'd say it might take longer than you'd want.
the thing is, you need to know what works for you,
and to do that, you need to try out a few of these putters.
good luck with whatever you end up choosing.