after i had some more time of thinking and reading some of the other ppl opinions i have to say that the slot idea in the form is a very bad idea.
it totaly punishes the ppl that have set up something on gamma. the whole pvp problem was about the betas from the start and the gammas are in terms of sparks a different thing.
even the opposite.
the spark teleport is 10 at max.
if you make it that system you can have max 2 gammas +1 betas.
to defend a gamma efficiently you need at least 3 sparks on that one island or the enemy can easy outmanuver you by simply using mobile teleports. you cant jump after them in most caeses because your fleet will be killed one by one when you jump after them.
maintaining a gamma is a fifferent thing. you need to move around a lot and mostly you can cut half the travel by sparking to the terminal close to the job. thats why i have 3 sparks on my main industrial island. 2 other sparks on other gamma bases (that are all mine. no allied bases). with that change ppl will have to use a extreme ammount of time just for the travel.
i need to get somewhere on the island and do something. atm i pick one of the 3 terminals i have sparks jump there, grab a bot i need and get out to do it. travel still 5-10 mins. if i only have one spark then traven will go up to 15-30mins or more. 2-way and a mobile tele will not always help you. so if i dont have 2 hours of playtime i dont have to think about doing it because most of the time will be killed by getting to the job instead of doing the job.
from the nine sparks i have atm (what is already a high ep investment) are 5 gamma one beta terminal and 3 beta outposts (from which i could free 2 that i dont realy need there).
cutting down on gamma sparks will mean that most gamma projects will be very hard to do. just because of imense time eating for travel. that is not the way to go devs.
then go another way. get some corporate sparks and some personal sparks.
corporate sparks will be to the stations that your corp owns. beta outposts and gamma terminals. thses will only be the ones your corp owns. not the one your friends own. for that you then can use the personal sparks that in your suggested system would be sufficient. but ppl still have their way to run their bases.
3 sparks for ppl who have invested a lot (yes a lot) time into their gammas is a slap into the face. because now its not maintainable. will you reimbuse that along spt ep? bts ill take 50€/h as self employed person ... well you can check my online time in the last year or so...