There is no DIR police. No one is going to look at the relief zipper on your suit, tell you it's not DIR compatible, and refuse to dive with you because of it.
I think you're making the mistake of being overly concerned with what "is DIR" and less with what is REALLY DIR: being a better, safer, more team-conscious diver. A relief zipper really makes no difference.. maybe it's more failure prone, but if you're not doing extended range cave exploration it's really not going to be THAT big a deal if you have to call a dive because of it.
Try to focus more on what makes sense for you at this point, not whether something is specifically by the book DIR or not.
Lots of DIR divers wear Rock Boots. If you're comfortable with them and like them, then use them.. again, no one is going to look at your Rock Boots and call you a stroke and refuse to dive with you or exclude you from the group.
I think that getting the right pockets on the suit is the biggest thing right now. Get the Turbo Soles if you want. Replace the Zip Seals with regular glued-on seals if you want to go that far. Install a P-valve (this is easy to do yourself, actually.. you can get the valve for $40 from www.salvodiving.com). The exhaust valve is fine where it is.
You keep asking what is "acceptable." Acceptable to whom is really the question here.
I think you're making the mistake of being overly concerned with what "is DIR" and less with what is REALLY DIR: being a better, safer, more team-conscious diver. A relief zipper really makes no difference.. maybe it's more failure prone, but if you're not doing extended range cave exploration it's really not going to be THAT big a deal if you have to call a dive because of it.
Try to focus more on what makes sense for you at this point, not whether something is specifically by the book DIR or not.
Lots of DIR divers wear Rock Boots. If you're comfortable with them and like them, then use them.. again, no one is going to look at your Rock Boots and call you a stroke and refuse to dive with you or exclude you from the group.
I think that getting the right pockets on the suit is the biggest thing right now. Get the Turbo Soles if you want. Replace the Zip Seals with regular glued-on seals if you want to go that far. Install a P-valve (this is easy to do yourself, actually.. you can get the valve for $40 from www.salvodiving.com). The exhaust valve is fine where it is.
You keep asking what is "acceptable." Acceptable to whom is really the question here.