Thundercat (slightly better)
Puma (a lot better)
Piranha (about the same)
Piranha (early model), beaver tail rail, J & J ceramic
Puma, twin tanks with Smart Parts on / off valves, Smart Parts A / A barrel
Barrel & expansion chamber with bottom line.
The markers made by Indian Creek are all quality machined. They are extremely reliable and perform well. They have a slightly complex tuning ability but this only adds to their reliability in all forms of weather conditions.
You have to be a little mechanically inclined to properly utilize the tuning capability of the Indian Creek's markers (Alleycat, Thundercat, & Puma) However, after a little practice I believe anyone can do it.
I just about wore my Alleycat out so I bought a Thundercat for a backup. I haven't had to use my Thundercat yet because my Alleycat just won't die. I have also picked up a used Puma for a sweet price and I'm starting to tinker with it so I may never had the opportunity to use my Thundercat.