On July 12, 2012, the Maryland DNR stocked approximately 3,000 4" tiger musky fingerlings them again last year after 6 years of not stocking them due to fears of VHS disease and the Feds making it illegal to export any fish from Great Lakes states where the disease was found.
Since then, those states had to have their hatcheries certified as selling "clean" fish, free from disease. Maryland gets theirs from PA, and for the first time in several years, "clean" fish have been available. PA produces the most tiger muskies of any state by far (probably over 90%), so you can imagine that they're in high demand nationwide, hence the other road block to stocking has been simply availability (or lack thereof). Below is a letter from a concerned fellow angler from several years ago that explained the issues.
My friend sent another email asking about stocking this year, and was told that they are trying to acquire the same number of fingerlings from PA this year and stock again. Availability is the issue now. That update was three weeks ago.
Several years back at BH, while fishing out of my buddy's Coleman Crawdad, I had one bite off my Rattlin' Super Rogue one spring while that lure was producing several very big bass for me that day (all between 18 and 21 inches long). I cast to a log jam, twitched it once and let it sit, then wham. At first I thought it was a monster bass only to see it launch out of the water and it was pretty massive (maybe low to mid 40 inches). I fought it using Fireline on my finess rod, and it was directly below the boat about 4' down and shaking it's massive head. Inside it's mouth, deep, was my jerkbait hooked on each inside cheek sideways, with my line exposed to those teeth.
I had just said to my buddy that I don't think we're going to land this one when my line just went limp. The tiger jumped a few times trying to throw the hook but didn't see that occur (not that I could have retrieved it). I was bummed not only because of losing that fish, but more importantly the hot lure of the day was gone. My replacement that day, my closest match, a Husky Jerk, caught bass, but not like that Rogue.
I know own many Rogues, LOL.
As far as growth rates, those 4" fish are probably about 16-18" now. The should be over 30" in two years, and after that they get pretty large very quick. They only live about 6 years or so, but some have been recorded as living as long as a dozen years. Those fish become massive. The biggest officially recorded tiger musky out of Black Hills was a dead 51" fish. The biggest officially recorded caught fish were mid 40's at most. Now that perch are in there, along with the many gills and crappie, there could be more fish approaching 50" in the future. There were two bogus reports (no pictures of fish on a bump board or other measuring device) of 58" tigers caught at BH. The pictures looked like either the tigers were mid 40's and held very close to the camera, or the angler had extremely abnormally sized hands and fingers that could engulf the head of any human easily in their fist .