I'm from Spain, Girona (Costa Brava).
Right now trying rubber bands configs to pull away a 1'40m. 7'5mm salvimar spear from a wood stuck I've made.
It's a 110 clasic roller (ermesub cristal kit), with a hole for a booster/kikker band.
4 iroko pices +1 ipé on the center.
At the moment, the best I've found is 16mm on roller 320% +14mm kikker 320%. But must do some balistic tests...
I'll tell.
Cheers!! Nice to be here:thumbsup2: