Yeah I know kinda dumb question, but I don't wanna do a dumb thing and regret it. Have year old GK 2-10 & 1-15 cabs. Each are same physical size and weight. Look identical. Did not come with GK casters. Cabs are relatively light @ 35 lbs each. But I wanna make the cab mobility easier...add casters to at least one cab. Then I can stack cabs and roll both together. Based upon any TBer's experience with subject, any downside to this? Thanks.