Reimbusrement for precepting a new nurse

I was wondering what everyone's company pays for precepting new nurses. My company has asked me to precept new nurses. My reimbursement is as follows: If I do the visits and she tags along, I get the visit pay, plus if I spend 4 hours with her, I get $72 (buy only if I am doing the visits). If she does the visit and I am supervising her, I get their visit equivalent. For example, we went out the other day, did 4 visits (2 were in the same home, a couple we have on service), and she gets paid for the visits themselves. I get the visit equivalent for 4 hours which is 3 visits. So she made more money than I did for those visits. These were my normal visits, so had I done them as I had planned I would have been paid for the 4 visits. I don't think as a preceptor I should get less money than the one I am precepting or am I just being money hungry? My boss said she thought I was making out OK for not having to do anything by supervise. I say it is not worth my time to make less money than the person I am precepting, or than I could make doing those visits on my own. Usually you only do the visits the first couple days then the new nurse does the visits for the rest of the time you are precepting.
Also their visit equivelent is (instead of paying you hourly, they pay this way for meetings, inservices and case conferences), from 0.5-1.5 hours is 1 visit, 1.75-3 hours is 2 visits, 3.25-4 hours is 3 visits, 4.25-5 hours is 3.5 visits and so on. I don't agree with this as case conferences usually last 1.5 hours. I am curious how other agencies pay precepting and meetings, ect. Thanks for the info in advance.