Compact Spyder (owned), and tried just about every blow back semi, and everything from an angel to a cocker.
My Millenium (double trigger stock version), Smart Parts All American, and PMI perfect drop, 12v Rev., Smart Parts 20 oz. on/off tank
GZ Timmy - 68/45 dynaflow, 12v revolution
Some sort of drop foward (I would recommend a small wedge type one for CO2)
replace the short factory bottomline hose
It looks very cool, vert. feed, decent rate of fire, easy to shoot w/ both hands
Delta (the makers) offer really great customer support, I mean they are truely great people.
99%% interchangalbe with spyders
The marker is heavy as compared to other similar types (ie spyders, etc)
No owners' manual
Had problems pinching balls (in my personal expierence)
Problems with replacing parts
obscure (nobody knows what it is/has one)
Consistency (would periodicaly break down)
All in all, it is not that bad of a marker. Although I have had some small problems with replacing parts in the marker, Delta has been really great with service. The quality of Bob's goods has only gone way up, and will continue to do so. It is a ok marker if that's what you have your heart set on. I can tell you from expierence, I have missed alot of playing due to it breaking down (half half manufacturing, half my fault learning what was wrong). But in all honesties, I ended up playing with my spyder compact because my millenium would never work, and when it came time to buy my girlfriend her own marker, I bought her a model 98, because they are a better buy in my point of view, and has turned out to be true (from a realiabillity standpoint). SO think about it seriously, it may not be what you want. It is important to remember, a broken down millenium is a $200 paperwieght. I can not say you will definately be satisfied, wich is not acceptable (in my point of view) for anything.