105 is full hydro, HY/RD is half but need compressionless and careful set up to make it feel just like a full hydraulic.
Would you push the budget for full hyro ed?
If you can, go for it, otherwise HY/RD is enough.
@Dantheman started
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105 is full hydro, HY/RD is half but need compressionless and careful set up to make it feel just like a full hydraulic.