rcamigo,

I echo what Jim Dines has written. Have had no problems with 4 of these tanks (Mach I and 3 Mach IIs, we race the IIs).

The only difference is that I use an 11 x 4 APC on the LA in the Mach I. I like my trainers slow and thrusty (lots of thrust).

Have been giving buddy-box instruction for 30 years.

Ken Erickson