superscaff75
Well-known member
not 100% sure bud , never had any problems using them whether on stacks or the few jobs ive been involved on that were erected using all mills fittings in fact i like them , take a bit getting used to but once you got it cracked i think they very user friendly as you can rest tubes on top of them , slide tubes over them , they generally sit together quite well too when say basing out using just doubles if you get my meaning