fwiw, i am currently using a sumiko celebration with the p-75, on my vpi scoutmaster and the match has been terrific. beyond the beautiful music this combo produces, i find the celebration to be the least fussy/sensitive cartridge i have ever used. in other words, get a good middle ground setting for vta/vtf you're good to go. also very easy to align.
that being said, my understanding is that the 17d2/p75 combo is a match made in heaven for obvious reasons. so if you can't find a used celebration(or just don't want a used cart) i don't think you can go wrong with the all dyna set up. and don't give up on the p75 before you've put at least 100-200 hours on it. and make sure to leave it on 24/7 for best performance. and with the koetsu, or any low output mc, it's best performance will be in "enhanced" mode. it really is a very underrated performer, especially with lo mc's.
good luck.
that being said, my understanding is that the 17d2/p75 combo is a match made in heaven for obvious reasons. so if you can't find a used celebration(or just don't want a used cart) i don't think you can go wrong with the all dyna set up. and don't give up on the p75 before you've put at least 100-200 hours on it. and make sure to leave it on 24/7 for best performance. and with the koetsu, or any low output mc, it's best performance will be in "enhanced" mode. it really is a very underrated performer, especially with lo mc's.
good luck.