Bel Air in general, all have the same cusioning tbh.

For the extra price/cost the cro mo suited me.

For weight loss I upgraded parts like stem to a Hope, BB to Hope, brakes to Hope. Thats where the shitting thing got expensive. For a hard tail it costs me around £3k, that includes the full bike and servicing.

It is however my main transport to keep me fit, all the upgrades have been for ease of service, plus strong. Shame the rear wheel gets battered as it gets proper abuse.