Hi Lawn Slave, and a warm welcome to the forum. grin
We all like to learn new things and tinker here!

Re your questions, as a Scott Bonnar man, I can't give you much advice on the blade switch, but I'm hoping Joe Carroll, our resident Victa guru, will jump in here with some thoughts.
If not Bruce (site administrator) may be able to help you.

Once again Lawn Slave, :welcome:
cheers2

Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member.
Kindest Regards, Darryl grin