Hey i was wondering if anyone had had any experience with the little 40cm pneumatic spearguns that holster on your leg? they look like a cool idea, if i have my 110 speargun with me then see something in a cave or a camouflaged fish i can just wip it out rather than risking imbedding and $80 spearshft into a rock but i was a bit worried about the holster, does it cover the trigger and block the spear or is there a chance it could shoot me in the foot? also do they have any power behind them? any input would be very much apperciated. specifically im looking at an asso 40.