I had a similar issue with 1/3 of my entire bulkhead soaked. The plywood had essentially dissolved. In the end I had a local boatyard cut out the entire bulkhead and replace it. Foam core, glassed along the top (like it shoaled have been in the first place) and solid glass at the chainplates.
We race with all NS similar to Wildcat and our tuning is very similar to the above. I would add that we leave the headstay at max length until 18 knots, then put turns on after that. We tend to be on the extreme at low end and upper end with tension of standing rigging - . Super loose in light air, with leeward shrouds like a noodle. In high winds, we go up to 42/43 on lowers and uppers. We also tighten turnbuckles on the backstay in over 18 as well to allows for enough backstay tension. The tension on the backstay for breezy conditions does not allow the backstay to be eased enough in light air so a light and heavy air setting for both backstay turnbuckles is needed.
I have found that if you reef the main, it is very difficult to point. Some boats in OD get faux reef points that meet the rule but can't be used as they feel they will never reef the main while racing.
Take some pics and post them and I'm sure you will get a few opinions on this forum.
Reputation for FAST - J30 Racing Boat completely Race Ready! She is in pristine shape, dry (for a J/30), and has never seen salt. Bottom completely redone Summer 2020, Keel templated. Recently upgraded with a new TriRadial Dacrom Sail Package, Northstar AGM batteries, new bilge pumps, new bilge hoses, reconditioned prop, LED lighting, stainless hardware, stainless prop shaft and more. Includes an inventory of race sails.
Currently parked at Jefferson Beach Marina (SafeHarbor) in Saint Clair Shores , comes with desirable dock slip for remainder of 2020 season.