I know TSK is years and years into a spider X spider project. Their numbers aren't huge but they probably have by far the best records on the subject so if anyone here knows them maybe they can ask if they are ready to share. Does NERD or BHB even bother to keep records on everything? As a very small scale breeder I find it a nuisance and could easily see some of the big guys not bothering but of course don’t know any of them, just have a few old e-mails from TSK indicating they are records nuts. I just never had any reason not to believe BHB's report of the homozygous pinstripe because of the data he presented to back it up and even though NERD denied that spider was homozygous lethal years ago he didn't really present any data so I discounted it as meaning he just didn't see any dying hatchlings like with the woma/pearl. Anyway, I don't really want to get a 2nd spider and embark on the work to try to prove what might be unprovable for myself but could see getting my first pinstripe pair to try that one, maybe. Suppose at this point you would want some sort of homozygous pinstripe combo to make the project work economically and that complicates things.