Sta-lok and toggles

[seawolf]

I have a single spreader rig with single lowers connected to chainplates at midmast.
I purchased all sta-lok eye terminals when deciding to re-rig my old 1962 Columbia sloop.
After viewing Brion's informative dvd on rerigging your boat, I have decided to install toggles at the tangs for the upper attachment of the lower shroud. I know you can buy the Sta-lok with toggle, but since this is an after thought, I found some nice used older bronze toggles that are one piece, with the eye on one end and the fork on the other.
My question is with this type of toggles eye portion going into the mast tang end and the eye of the Sta-lok connected to the fork of the toggle, will this give results as good as a Sta-lok fitting with a built in toggle?
The Sta-lok eye terminal seems to fit nicely in these used toggle forks.

The turnbuckle attachment at the chainplate is toggled but not the upper turnbuckle. Just a forked stud going into it. I figured with a toggle above, it would not be required to toggle at the upper turnbuckle.
Any and all advise welcome.
Seawolf..