TR4 wheel cylinders - vendor choice?

["J.C. Hassall" <jhassall@blacksburg.net>]

Listers,
I'm just beginning the rear axle rebuild on my 63 TR4.  I notice it has two 
different wheel cylinders - one slotted and one not.  Both are 0.75 dia, 
but that's about the only commonality between sides, so I've decided to 
replace 'em both.

Seems to me that slotted pistons are better than flat-topped - less 
opportunity for the brake shoes to shift.  What say y'all?

TIA

Jim

--
Jim
jhassall@blacksburg.net
Blacksburg VA
'63 TR4 in autox preparation, 90% finished, 90% to go