I'd get the Class 1 medical ASAP..........alot of perfectly fit guys on this forum (including myself) have been throught the mill with the medical. Some have not been so lucky as me.
I now have a Class 1 medical, but I failed it back in 2000 when I had 100 hrs, and was thinking of starting my ground studies.
It took 4 years, and a change in the rules before I was finally issued with the medical.