I am interested in getting the edgun peazy fill system and it mentions that it will fit any 8mm fill probe...but I can't find any info on what size fill probe the huben gk1 takes. I measured it with my calipers and it came in under 8mm. Are edgun leshi 2 probes and the gk1 compatible? It also said you can swap the prob out for a foster fitting...but the one I got to test doesn't fit the huben probe (luckily it was only a few dollars). Any insight would be appreciated. Thanks