I have a technical question- I have a couple of CFI/TMT machines with the 36 blower. When Power Clean produced the machines under their label as the Freedom XT it came with I think a 45 blower. How hard/expensive do you think it would be to switch the blower to a 45 on my machine? Do you think the increased vac would justify the change out? I would really like more vac power for doing residential carpet.