Lyle....mostly private and e-bay only sales any more...no longer produced by any one...well I take that back..I think Matt at ExModel Engines has a variant...If I recall his are 80-TPI and not 128TPI...test by CEF members was favorable
ask Matt at
http://www.exmodelengines.com/product.php?productid=18311&cat=266&page=1On the Bay I have seen them bid up to over $100...insane
Texas Timers is out... no more ever
ACE R/C version-- long gone, but occasionally can be seen a a engine or LOT of engines...generally a gold(brass ) Body with a tightening nut over the needle...KK versions usually had the hard black plastic over the needle
I am down to one KK and one Ace RC version...not really wanting to part with either
But would consider a serious offer
One other option is to convert to a remote NVA for pressure... the smaller OS 10/15
PN-21181902 works but Tower and Shttrman ( E Bay seller) do not have any