i'd be fine with using that type of conversion as well as it would assist in getting rid of materia. i'm just overwhelmed with over 300 tier III and IV materias because i am bonding now and waiting on the hq next update to go for multiple high attachments to that gear.
i understand the concern about handing over mats for the gear, but i wonder if there wouldn't be a way to add an option in your bazaar for a synth to be made where they would be able to do so directly through there without you actually handing the items over. this would solve alot of fears that are had there. i'd want a popup there to tell me who wished to complete my synth though because there's people there is no way i would want to do anything for me because they have admitted to buying gil or botting.
yes, i agree it has some game to it, but as one of my additions stated(addition 1) your sp would be based off a base score and by using abilities and getting higher quality and getting higher level hq gears that base sp would get boosted. it would give a reason for people to pay attention to the orbs because they actually matter. as it sits now it doesn't matter if you complete the synth with 1 quality or 300 as the sp you gain is the same. now if you completed with 1 quality and got 250 sp(base score) and then compared it to getting 200 quality and got 1000 sp( base score + base score(hq1) + base score(hq2) + base score(hq3)) then you would have a great incentive to grind and make each synth count due to the mats and sp were both determined by max effort.
in other words if you can get 4x the sp for taking your time and doing the synth right and you use the same amount of materials. you could blow through and standard bash if you wished, but it would no longer be beneficial to do so because it would cost time and materials to do so.
i agree with the fact the sp makes the game a grind, but to me that is more of the fact there is no reward for the extra effort so it is spam standard all the time. the sp should be increased, but there should be a need for the effort to make the sp increase and not just boost the base sp for standard bashing. keep the base sp as it is, but boost the sp for getting higher quality as that is how you should be trying to craft anyways.
right now crafting is like what people could do in battle. you could go in with a group and go into active mode and just auto attack a mob your level to death, but you would get bored to death doing so. doing nothing but hitting standard is the same thing in crafting. you learn your skills, get training manuals, increase quality, get better gear, use support when required just like you do as a battle member, but the thing is crafting has no incentive to do so anymore and the only things that did require them have been removed.