Has anybody used other brand crystall's in the HL tanks ? What works ?

The "search" feature is your friend. Hobbico Red Hawk 27mhz FM crystals work.

Cool , thanks

Tower sells them cheap,and shipping is fast and also inexpensive.Think you can order several sets and shipping cost is most likely the same,around 4 dollars shipping. BIGMIG

HPI FM crystals work a treat, so can steal from one from your truck.

Yours Simon M.

The VS Tank crystals work (they have 6 frequencies) For some reason the Matorro ones don't work in the HL electronics