38/42/45 mm pole?

Hi guys, I wanted to ask you a question: In the gyms where I have classes (I have 2 gyms) they use 42 mm poles, at home I have an x-stage lite with a 45 mm pole, however I can't seem to get used to it (it keeps feeling like the pole is to 'big'). Now I got an 38 mm R-pole offered but I think that might be to small. Any polers who can tell me more about this? I can't get a 'normal' pole because of my high and very instable ceiling so If I want one it has to be a staged one... Hope you guys can help me:) Wishing you all lots of polefun! XO Mieke