Any thoughts on the Giro ProLight SLX?
I have Giro Empires and Giro Factors and like them, I have tried on the ProLight and they felt similar to the Factors.
Prolights are about 100g less (225g/shoe) and $100+ more compared to Factors (275g/shoe). They are light and comfortable, but I found the velcro was low quality - the straps didn't hold very well (scary when riding hard), and the hook part of the velcro wore out in about a season. I am not very finicky with my shoes either, usually do the straps once or twice per ride and that's it. Factors have the same fit, upper, and EC90 sole as the Prolights but with a top buckle instead of velcro strap and feel much more secure. Empires are basically Prolights but with laces and about the same weight as Prolights (225g/shoe), and the laces would probably last much longer than velcro and easy to replace. If you look around Empires are about the same price as Factors right now (~$150 or less if on sale). Ultimately it depends on which closure system you prefer.
How many miles is a season? Was the Velcro naff to start with or only as they age?
There aren't any cheap factors available in the UK, but the prolights are around for about £110.
Other reviews I've read were quite positive about the Velcro.